CTK Research and Development Canada Ltd.

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        Patent 13
        Trademark 1
Jurisdiction
        Canada 5
        World 5
        United States 4
Date
2025 March 1
2025 January 1
2025 (YTD) 2
2024 4
2023 6
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IPC Class
C08K 3/013 - Fillers, pigments or reinforcing additives 5
C08L 3/02 - StarchDegradation products thereof, e.g. dextrin 5
C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds 4
C08L 97/02 - Lignocellulosic material, e.g. wood, straw or bagasse 4
C08J 5/06 - Reinforcing macromolecular compounds with loose or coherent fibrous material using pretreated fibrous materials 3
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NICE Class
02 - Paints, varnishes, lacquers 1
16 - Paper, cardboard and goods made from these materials 1
17 - Rubber and plastic; packing and insulating materials 1
40 - Treatment of materials; recycling, air and water treatment, 1
42 - Scientific, technological and industrial services, research and design 1
Status
Pending 9
Registered / In Force 5

1.

BIODEGRADABLE POLYMER BASED BIOCOMPOSITES

      
Application Number 18577293
Status Pending
Filing Date 2022-07-07
First Publication Date 2025-03-27
Owner CTK Research and Development Canada LTD. (Canada)
Inventor
  • Mekonnen, Tizazu H.
  • Gupta, Arvind

Abstract

The present invention provides compositions for use in making biodegradable biodegradable composite, and biodegradable composite comprising polybutylene adipate terephthalate (PBAT)-component; hemp powder; and optionally one or more compatibilizers and/or PBAT grafted with one or more compatibilizers selected from maleic anhydride, glycidyl methacrylate, pyromellitic anhydride, acrylic acid, polyacrylic acid, methylene diphenyl diisocyanate, poly(glycidyl methacrylate, copolymer(s) of glycidyl methacrylate and/or copolymers of acrylic acid. The invention also relates to methods of preparing the composites.

IPC Classes  ?

  • C08L 67/06 - Unsaturated polyesters
  • B29C 48/375 - Plasticisers, homogenisers or feeders comprising two or more stages
  • B29K 1/00 - Use of cellulose, modified cellulose or cellulose derivatives, e.g. viscose, as moulding material
  • B29K 67/00 - Use of polyesters as moulding material
  • B29K 96/02 - Graft polymers
  • B29K 105/00 - Condition, form or state of moulded material
  • C08K 3/013 - Fillers, pigments or reinforcing additives
  • C08K 5/00 - Use of organic ingredients

2.

BIODEGRADABLE COMPOSITE MATERIAL

      
Application Number 18711833
Status Pending
Filing Date 2022-09-13
First Publication Date 2025-01-16
Owner CTK Research and Development Canada Ltd. (Canada)
Inventor
  • Panda, Jitendra
  • Tajbakhsh, Saeid
  • Diaz, Carlos

Abstract

The present invention provides biodegradable composite materials comprising: a) a polymeric matrix comprising about 50-80% by weight of a cellulose alkanoate; about 0.1 to 10% by weight of a polyester, wherein the polyester is an aliphatic-aromatic copolyester, an aliphatic polyester, or a mixture of an aliphatic polyester and thermoplastic starch; about 10 to 20% by weight of a plasticizer; about 10 to 20% by weight of a flame-retardant component; optionally an inorganic filler; and b) a fibrous reinforcement material.

IPC Classes  ?

  • C08J 5/04 - Reinforcing macromolecular compounds with loose or coherent fibrous material
  • C08J 5/06 - Reinforcing macromolecular compounds with loose or coherent fibrous material using pretreated fibrous materials
  • C08J 5/10 - Reinforcing macromolecular compounds with loose or coherent fibrous material characterised by the additives used in the polymer mixture
  • C08L 1/12 - Cellulose acetate
  • H05K 1/03 - Use of materials for the substrate

3.

BIODEGRADABLE POLYMER BASED BIOCOMPOSITES

      
Application Number 18699343
Status Pending
Filing Date 2022-10-19
First Publication Date 2024-12-26
Owner CTK RESEARCH AND DEVELOPMENT CANADA LTD. (Canada)
Inventor
  • Mekonnen, Tizazu H.
  • Gupta, Arvind

Abstract

The present invention provides compositions for making biodegradable biocomposites, comprising poly(3-hydroxybu-tyrate-co-3-hydroxyvalerate) (PHBV) or a mixture of PHBV and polybutylene adipate terephthalate (PBAT); a hemp residue; and optionally PBAT grafted with one or more compatibilizers selected from maleic anhydride, glycidyl methacrylate, pyromellitic anhydride, acrylic acid, polyacrylic acid, methylene diphenyl diisocyanate, poly(glycidyl methacrylate, copolymer(s) of glycidyl methacrylate and copolymers of acrylic acid, and/or one or more compatibilizers from maleic anhydride, glycidyl methacrylate, pyromellitic anhydride, acrylic acid, polyacrylic acid, methylene diphenyl diisocyanate, poly(glycidyl methacrylate, copolymer(s) of glycidyl methacrylate and copolymers of acrylic acid.

IPC Classes  ?

  • C08L 1/02 - CelluloseModified cellulose
  • C08L 67/04 - Polyesters derived from hydroxy carboxylic acids, e.g. lactones

4.

COMPOSITIONS FOR MAKING BIODEGRADABLE PLASTIC

      
Application Number 18686550
Status Pending
Filing Date 2022-01-26
First Publication Date 2024-10-31
Owner CTK RESEARCH AND DEVELOPMENT CANADA LTD. (Canada)
Inventor
  • Hudson, Zachary M.
  • Cranston, Emily D.

Abstract

The present invention provides biodegradable compositions for making biodegradable plastic. The composition comprise about 25% to about 50% by weight starch; about 0.5% to about 10% by weight ground plant waste material; about 20% to about 50% a polymer derived from ethylene, vinyl alcohol and/or an ester of vinyl alcohol; about 10% to about 30% of a plasticizer; and about 3% to about 10% a filler and optionally a processing agent.

IPC Classes  ?

  • C08L 3/02 - StarchDegradation products thereof, e.g. dextrin
  • B29C 48/00 - Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired formApparatus therefor
  • B29C 48/16 - Articles comprising two or more components, e.g. co-extruded layers
  • B29C 48/40 - Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws, e.g. twin screw extruders
  • B29C 48/78 - Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
  • B29K 29/00 - Use of polyvinylalcohols, polyvinylethers, polyvinylaldehydes, polyvinylketones or polyvinylketals as moulding material
  • B29K 509/10 - Mica
  • B29K 511/00 - Use of natural products or their composites, not provided for in groups , as filler
  • C08K 3/34 - Silicon-containing compounds
  • C08K 5/053 - Polyhydroxylic alcohols
  • C08K 5/103 - EstersEther-esters of monocarboxylic acids with polyalcohols
  • C08K 11/00 - Use of ingredients of unknown constitution, e.g. undefined reaction products

5.

BIODEGRADABLE POLYMER BASED BIOCOMPOSITES

      
Application Number CA2023051759
Publication Number 2024/138263
Status In Force
Filing Date 2023-12-22
Publication Date 2024-07-04
Owner CTK RESEARCH AND DEVELOPMENT CANADA LTD. (Canada)
Inventor
  • Gillies, Elizabeth
  • Deng, Zhengyu
  • Liubchak, Iryna
  • Holness, Frederick Benjamin
  • Furie, Louise
  • Price, Aaron

Abstract

The present invention provides biodegradable polymeric materials. In particular, it relates to biocomposites materials comprising poly(butylene furanoate) copolyester(s) and plant material residue, and method of making same.

IPC Classes  ?

  • C08L 67/00 - Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chainCompositions of derivatives of such polymers
  • C08G 63/78 - Preparation processes
  • C08K 11/00 - Use of ingredients of unknown constitution, e.g. undefined reaction products

6.

NOT PLASTIC NOR PLA

      
Application Number 232022600
Status Pending
Filing Date 2024-04-08
Owner CTK Research and Development Canada Ltd. (Canada)
NICE Classes  ?
  • 02 - Paints, varnishes, lacquers
  • 16 - Paper, cardboard and goods made from these materials
  • 17 - Rubber and plastic; packing and insulating materials
  • 40 - Treatment of materials; recycling, air and water treatment,
  • 42 - Scientific, technological and industrial services, research and design

Goods & Services

(1) Color masterbatch (2) Container made of bioplastic for packaging; bioplastic bags for packaging; (3) Semi-processed thermosetting resins (4) Bioplastic resins in extruded form for general industrial use; bioplastic polymer films and sheets for use in the manufacture of printed circuit boards; (1) Custom manufacturing of bioplastic products for others, namely injection molding, injection stretch blow molding, electromagnetic blanking, thermoforming, extrusion, blow molding, plastic casting, blending, and compression molding of bioplastic for others; (2) Product design consulting services (3) Research, development, and testing of bioplastic resins for others; product design for others of bioplastic resins for use in manufacturing; custom manufacturing and injection molding of bioplastic resins for others; providing technological information for environmentally-conscious and green inventions in the field of bioplastic resins; design and development of bioplastic films and sheets used in the manufacturing of printed circuit boards;

7.

BIODEGRADABLE COMPOSITE MATERIAL

      
Document Number 03238284
Status Pending
Filing Date 2022-09-13
Open to Public Date 2023-05-25
Owner CTK RESEARCH AND DEVELOPMENT CANADA LTD. (Canada)
Inventor
  • Panda, Jitendra
  • Tajbakhsh, Saeid
  • Diaz, Carlos

Abstract

The present invention provides biodegradable composite materials comprising: a) a polymeric matrix comprising about 50-80% by weight of a cellulose alkanoate; about 0.1 to 10% by weight of a polyester, wherein the polyester is an aliphatic-aromatic copolyester, an aliphatic polyester, or a mixture of an aliphatic polyester and thermoplastic starch; about 10 to 20 % by weight of a plasticizer; about 10 to 20 % by weight of a flame-retardant component; optionally an inorganic filler; and b) a fibrous reinforcement material.

IPC Classes  ?

  • B32B 23/20 - Layered products essentially comprising cellulosic plastic substances comprising esters
  • C08J 5/06 - Reinforcing macromolecular compounds with loose or coherent fibrous material using pretreated fibrous materials
  • C08K 3/013 - Fillers, pigments or reinforcing additives
  • C08K 3/016 - Flame-proofing or flame-retarding additives
  • C08K 5/52 - Phosphorus bound to oxygen bound to oxygen only
  • C08K 7/02 - Fibres or whiskers
  • C08L 1/10 - Esters of organic acids
  • C08L 1/12 - Cellulose acetate

8.

BIODEGRADABLE COMPOSITE MATERIAL

      
Application Number CA2022051363
Publication Number 2023/087095
Status In Force
Filing Date 2022-09-13
Publication Date 2023-05-25
Owner CTK RESEARCH AND DEVELOPMENT CANADA LTD. (Canada)
Inventor
  • Panda, Jitendra
  • Tajbakhsh, Saeid
  • Diaz, Carlos

Abstract

The present invention provides biodegradable composite materials comprising: a) a polymeric matrix comprising about 50-80% by weight of a cellulose alkanoate; about 0.1 to 10% by weight of a polyester, wherein the polyester is an aliphatic-aromatic copolyester, an aliphatic polyester, or a mixture of an aliphatic polyester and thermoplastic starch; about 10 to 20 % by weight of a plasticizer; about 10 to 20 % by weight of a flame-retardant component; optionally an inorganic filler; and b) a fibrous reinforcement material.

IPC Classes  ?

  • C08L 1/12 - Cellulose acetate
  • C08J 5/04 - Reinforcing macromolecular compounds with loose or coherent fibrous material
  • C08J 5/06 - Reinforcing macromolecular compounds with loose or coherent fibrous material using pretreated fibrous materials
  • C08K 3/013 - Fillers, pigments or reinforcing additives
  • C08K 3/016 - Flame-proofing or flame-retarding additives
  • C08K 5/52 - Phosphorus bound to oxygen bound to oxygen only
  • C08K 7/02 - Fibres or whiskers
  • C08L 1/10 - Esters of organic acids
  • C08L 67/00 - Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chainCompositions of derivatives of such polymers
  • H05K 1/03 - Use of materials for the substrate
  • B32B 23/20 - Layered products essentially comprising cellulosic plastic substances comprising esters

9.

BIODEGRADABLE POLYMER BASED BIOCOMPOSITES

      
Document Number 03233840
Status Pending
Filing Date 2022-10-19
Open to Public Date 2023-04-27
Owner CTK RESEARCH AND DEVELOPMENT CANADA LTD. (Canada)
Inventor
  • Gupta, Arvind
  • Mekonnen, Tizazu H.

Abstract

The present invention provides compositions for making biodegradable biocomposites, comprising poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) or a mixture of PHBV and polybutylene adipate terephthalate (PBAT); a hemp residue; and optionally PBAT grafted with one or more compatibilizers selected from maleic anhydride, glycidyl methacrylate, pyromellitic anhydride, acrylic acid, polyacrylic acid, methylene diphenyl diisocyanate, poly(glycidyl methacrylate, copolymer(s) of glycidyl methacrylate and copolymers of acrylic acid, and/or one or more compatibilizers from maleic anhydride, glycidyl methacrylate, pyromellitic anhydride, acrylic acid, polyacrylic acid, methylene diphenyl diisocyanate, poly(glycidyl methacrylate, copolymer(s) of glycidyl methacrylate and copolymers of acrylic acid.

IPC Classes  ?

  • C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
  • C08L 67/04 - Polyesters derived from hydroxy carboxylic acids, e.g. lactones
  • C08L 97/02 - Lignocellulosic material, e.g. wood, straw or bagasse
  • C08L 101/16 - Compositions of unspecified macromolecular compounds the macromolecular compounds being biodegradable

10.

BIODEGRADABLE POLYMER BASED BIOCOMPOSITES

      
Application Number CA2022051543
Publication Number 2023/065030
Status In Force
Filing Date 2022-10-19
Publication Date 2023-04-27
Owner CTK RESEARCH AND DEVELOPMENT CANADA LTD. (Canada)
Inventor
  • Mekonnen, Tizazu H.
  • Gupta, Arvind

Abstract

The present invention provides compositions for making biodegradable biocomposites, comprising poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) or a mixture of PHBV and polybutylene adipate terephthalate (PBAT); a hemp residue; and optionally PBAT grafted with one or more compatibilizers selected from maleic anhydride, glycidyl methacrylate, pyromellitic anhydride, acrylic acid, polyacrylic acid, methylene diphenyl diisocyanate, poly(glycidyl methacrylate, copolymer(s) of glycidyl methacrylate and copolymers of acrylic acid, and/or one or more compatibilizers from maleic anhydride, glycidyl methacrylate, pyromellitic anhydride, acrylic acid, polyacrylic acid, methylene diphenyl diisocyanate, poly(glycidyl methacrylate, copolymer(s) of glycidyl methacrylate and copolymers of acrylic acid.

IPC Classes  ?

  • C08L 67/04 - Polyesters derived from hydroxy carboxylic acids, e.g. lactones
  • C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
  • C08L 97/02 - Lignocellulosic material, e.g. wood, straw or bagasse
  • C08L 101/16 - Compositions of unspecified macromolecular compounds the macromolecular compounds being biodegradable

11.

BIODEGRADABLE POLYMER BASED BIOCOMPOSITES

      
Application Number CA2022051065
Publication Number 2023/279206
Status In Force
Filing Date 2022-07-07
Publication Date 2023-01-12
Owner CTK RESEARCH AND DEVELOPMENT CANADA LTD. (Canada)
Inventor
  • Mekonnen, Tizazu H.
  • Gupta, Arvind

Abstract

The present invention provides compositions for use in making biodegradable biodegradable composite, and biodegradable composite comprising polybutylene adipate terephthalate (PBAT)-component; hemp powder; and optionally one or more compatibilizers and/or PBAT grafted with one or more compatibilizers selected from maleic anhydride, glycidyl methacrylate, pyromellitic anhydride, acrylic acid, polyacrylic acid, methylene diphenyl diisocyanate, poly(glycidyl methacrylate, copolymer(s) of glycidyl methacrylate and/or copolymers of acrylic acid. The invention also relates to methods of preparing the composites.

IPC Classes  ?

  • C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
  • C08J 3/20 - Compounding polymers with additives, e.g. colouring
  • C08L 3/02 - StarchDegradation products thereof, e.g. dextrin
  • C08L 97/02 - Lignocellulosic material, e.g. wood, straw or bagasse

12.

BIODEGRADABLE POLYMER BASED BIOCOMPOSITES

      
Document Number 03223644
Status Pending
Filing Date 2022-07-07
Open to Public Date 2023-01-12
Owner CTK RESEARCH AND DEVELOPMENT CANADA LTD. (Canada)
Inventor
  • Gupta, Arvind
  • Mekonnen, Tizazu H.

Abstract

The present invention provides compositions for use in making biodegradable biodegradable composite, and biodegradable composite comprising polybutylene adipate terephthalate (PBAT)-component; hemp powder; and optionally one or more compatibilizers and/or PBAT grafted with one or more compatibilizers selected from maleic anhydride, glycidyl methacrylate, pyromellitic anhydride, acrylic acid, polyacrylic acid, methylene diphenyl diisocyanate, poly(glycidyl methacrylate, copolymer(s) of glycidyl methacrylate and/or copolymers of acrylic acid. The invention also relates to methods of preparing the composites.

IPC Classes  ?

  • C08L 3/02 - StarchDegradation products thereof, e.g. dextrin
  • C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
  • C08L 97/02 - Lignocellulosic material, e.g. wood, straw or bagasse

13.

COMPOSITIONS FOR MAKING BIODEGRADABLE PLASTIC

      
Document Number 03204713
Status Pending
Filing Date 2022-01-26
Open to Public Date 2022-08-04
Owner CTK RESEARCH AND DEVELOPMENT CANADA LTD. (Canada)
Inventor
  • Cranston, Emily D.
  • Hudson, Zachary M.

Abstract

The present invention provides biodegradable compositions for making biodegradable plastic. The composition comprise about 25% to about 50% by weight starch; about 0.5% to aboutl0% by weight ground plant waste material; about 20% to about 50% a polymer derived from ethylene, vinyl alcohol and/or an ester of vinyl alcohol; about 10% to about 30% of a plasticizer; and about 3% to about 10% a filler and optionally a processing agent.

IPC Classes  ?

  • C08K 3/013 - Fillers, pigments or reinforcing additives
  • C08K 5/053 - Polyhydroxylic alcohols
  • C08K 5/151 - Heterocyclic compounds having oxygen in the ring having one oxygen atom in the ring
  • C08K 5/21 - UreaDerivatives thereof, e.g. biuret
  • C08L 3/02 - StarchDegradation products thereof, e.g. dextrin
  • C08L 29/04 - Polyvinyl alcoholPartially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
  • C08L 31/04 - Homopolymers or copolymers of vinyl acetate

14.

COMPOSITIONS FOR MAKING BIODEGRADABLE PLASTIC

      
Application Number CA2022050108
Publication Number 2022/160046
Status In Force
Filing Date 2022-01-26
Publication Date 2022-08-04
Owner CTK RESEARCH AND DEVELOPMENT CANADA LTD. (Canada)
Inventor
  • Hudson, Zachary M.
  • Cranston, Emily D.

Abstract

The present invention provides biodegradable compositions for making biodegradable plastic. The composition comprise about 25% to about 50% by weight starch; about 0.5% to aboutl0% by weight ground plant waste material; about 20% to about 50% a polymer derived from ethylene, vinyl alcohol and/or an ester of vinyl alcohol; about 10% to about 30% of a plasticizer; and about 3% to about 10% a filler and optionally a processing agent.

IPC Classes  ?

  • C08L 3/02 - StarchDegradation products thereof, e.g. dextrin
  • C08K 3/013 - Fillers, pigments or reinforcing additives
  • C08K 5/21 - UreaDerivatives thereof, e.g. biuret
  • C08K 5/053 - Polyhydroxylic alcohols
  • C08K 5/151 - Heterocyclic compounds having oxygen in the ring having one oxygen atom in the ring
  • C08K 11/00 - Use of ingredients of unknown constitution, e.g. undefined reaction products
  • C08L 29/04 - Polyvinyl alcoholPartially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
  • C08L 31/04 - Homopolymers or copolymers of vinyl acetate