Hybrid polyols

Patent metadata

Field	Value
Publication number	US-2016108166-A1
Application number	US-201414893214-A
Country	US
Kind code	A1
Filing date	May 8, 2014
Priority date	May 30, 2013
Publication date	Apr 21, 2016
Grant date	—

Abstract

Provided is a two-component composition comprising one or more polyisocyanate and one or more hybrid polyol comprising reaction residues of
(i). one initiator polyol having N hydroxyl groups, wherein N is 2 or greater, and wherein the number-average molecular weight of said initiator polyol is 900 or lower, (ii). one or more anhydride, and (iii). two or more alkylene oxides having the structure

wherein said R 3 is hydrogen or an alkyl group,
wherein the mole ratio of said reaction residues of anhydride to said reaction residues of initiator polyol is N:1 or less; and
wherein the mole ratio of said reaction residues (iii) to said reaction residues of initiator polyol is 20:1 or less

wherein at least one said reaction residue of an anhydride is attached directly to one of said reaction residues of a higher-alkylene oxide.

First claim

1 . A two-component composition comprising
A. one or more polyisocyanate, and B. one or more hybrid polyol comprising reaction residues of
(i). one initiator polyol having N hydroxyl groups, wherein N is 2 or greater, and wherein the number-average molecular weight of said initiator polyol is 900 or lower,
(ii). one or more anhydride, and
(iii). two or more alkylene oxides having the structure

wherein said R 3 is hydrogen or an alkyl group,
wherein the mole ratio of said reaction residues of anhydride to said reaction residues of initiator polyol is N:1 or less; and
wherein the mole ratio of said reaction residues (iii) to said reaction residues of initiator polyol is 20:1 or less
wherein at least one said reaction residue of an anhydride is attached directly to one of said reaction residues (iii).

2 . The method of claim 1 , wherein said R 3 is an alkyl group.

3 . The composition of claim 1 , wherein said initiator polyol (i) has three hydroxyl groups.

4 . The composition of claim 2 , wherein the mole ratio of said reaction residues of anhydride (ii) to said reaction residues of initiator polyol (i) is from 1.0:1 to N:1, wherein said N is the number of hydroxyl groups on said initiator polyol (i).

5 . The composition of claim 2 , wherein mole ratio of all said reaction residues (iii) to said reaction residues of initiator polyol is from 2:1 to 10:1.

6 . The composition of claim 2 , wherein the length of the longest chain of adjacent reaction residues (iii) to be found in the molecule of the hybrid polyol is 6 or lower.

7 . The composition of claim 2 , wherein said anhydride is phthalic anhydride.

Assignees

• Rohm & Haas
• Dow Global Technologies Llc

Inventors

• Zupancic Joseph J
• Heath William H
• Jimenez Jorge
• Marine Amira A
• Shutov Pavel L
• Vietti David E

Classifications

• C08G18/72

  Polyisocyanates or polyisothiocyanates · CPC title

• C08G18/4887

  containing carboxylic ester groups derived from carboxylic acids other than acids of higher fatty oils or other than resin acids · CPC title

• C08G18/4879 Primary

  containing aromatic groups · CPC title

• C08G18/4261

  prepared by oxyalkylation of polyesterpolyols · CPC title

• C08G18/10

  Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step · CPC title