Abstract

A polyester polyol of formula produced by a first polycondensation (a) of a sugar alcohol Z in C3 to C8 and two diacids Y and Y′ which are the same or different in C4 to C36, and a second polycondensation (b) of the product produced in (a) with two diols X and X′ which are the same or different in C2 to C12, the polymer including such a polyester polyol. Also, a method for producing the polyester polyols and the use thereof in foams, adhesives, coatings or elastomers of polyurethane or polyisocyanurate.

IPC Classes  ?

• C08G 18/42 - Polycondensates having carboxylic or carbonic ester groups in the main chain
• C07C 67/08 - Preparation of carboxylic acid esters by reacting carboxylic acids or symmetrical anhydrides with the hydroxy or O-metal group of organic compounds
• C07C 69/40 - Succinic acid esters
• C07C 69/44 - Adipic acid esters
• C08G 63/668 - Polyesters containing oxygen in the form of ether groups derived from polycarboxylic acids and polyhydroxy compounds
• C08K 5/00 - Use of organic ingredients
• C08J 9/12 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
• C09D 175/04 - Polyurethanes
• C09J 175/04 - Polyurethanes
• C08G 18/76 - Polyisocyanates or polyisothiocyanates cyclic aromatic
• C08G 63/672 - Dicarboxylic acids and dihydroxy compounds
• E04B 1/74 - Heat, sound or noise insulation, absorption, or reflectionOther building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls

Abstract

The invention relates to a polyester polyol of formula produced by a first polycondensation (a) of a sugar alcohol Z in C3 to C8 and two diacids Y and Y' which are the same or different in C4 to C36, and a second polycondensation (b) of the product produced in (a) with two diols X and X' which are the same or different in C2 to C12, the polymer comprising such a polyester polyol. The invention also relates to the method for producing said polyester polyols and to the use thereof in foams, adhesives, coatings or elastomers of polyurethane or polyisocyanurate.

IPC Classes  ?

• C07C 67/08 - Preparation of carboxylic acid esters by reacting carboxylic acids or symmetrical anhydrides with the hydroxy or O-metal group of organic compounds
• C08G 63/66 - Polyesters containing oxygen in the form of ether groups
• C08G 63/668 - Polyesters containing oxygen in the form of ether groups derived from polycarboxylic acids and polyhydroxy compounds
• C08G 18/42 - Polycondensates having carboxylic or carbonic ester groups in the main chain

Abstract

The present invention relates to a flexible or semi-flexible foam, or to a composition making it possible to obtain a flexible or semi-flexible foam, comprising a polyester polyol or a polymer comprising a polyester polyol. Said polyester polyol is obtained by a first polycondensation (a) of an alcohol sugar Z in C3 to C8 and of two identical or different diacids Y and Y' in C4 to C36 and a second polycondensation (b) of the product obtained in (a) with two identical or different diols X and X' in C2 to C12.

IPC Classes  ?

• C07C 67/08 - Preparation of carboxylic acid esters by reacting carboxylic acids or symmetrical anhydrides with the hydroxy or O-metal group of organic compounds
• C08G 63/66 - Polyesters containing oxygen in the form of ether groups
• C08G 63/668 - Polyesters containing oxygen in the form of ether groups derived from polycarboxylic acids and polyhydroxy compounds
• C08G 18/42 - Polycondensates having carboxylic or carbonic ester groups in the main chain

Abstract

The present invention concerns a rigid foam or a composition allowing a rigid foam to be obtained, comprising a polyester polyol or a polymer comprising a polyester polyol, said polyester polyol being obtained by a first polycondensation (a) of a C3 to C8 alcohol sugar Z and two identical or different C4 to C36 diacids Y and Y' and a second polycondensation (b) of the product obtained in (a) with two identical or different C2 to C12 diols X and X'.

IPC Classes  ?

• C07C 67/08 - Preparation of carboxylic acid esters by reacting carboxylic acids or symmetrical anhydrides with the hydroxy or O-metal group of organic compounds
• C08G 63/66 - Polyesters containing oxygen in the form of ether groups
• C08G 63/668 - Polyesters containing oxygen in the form of ether groups derived from polycarboxylic acids and polyhydroxy compounds
• C08G 18/42 - Polycondensates having carboxylic or carbonic ester groups in the main chain