Polyols derived from farnesene for polyurethanes

Patent metadata

Field	Value
Publication number	US-2017190829-A1
Application number	US-201614989140-A
Country	US
Kind code	A1
Filing date	Jan 6, 2016
Priority date	Jan 6, 2016
Publication date	Jul 6, 2017
Grant date	—

Abstract

A composition is provided for making a polyurethane that may be incorporated in various products, such as a sealant, a coating, a caulk, an electric potting compound, a membrane, a sponge, a foam, an adhesives, and a propellant binder. The composition includes one or more polyols, one or more isocyanate-group containing compounds having an isocyanate group functionality of at least two, and optionally one or more chain extenders. At least one of the polyols is a farnesene-based polyol having a number average molecular weight less than or equal to 100,000 g/mol and a viscosity at 25° C. less than 10,000 cP. The farnesene-based polyol may be a homopolymer or a copolymer of farnesene. The composition may also comprise additional polyols, such as a polyol of a homopolymer or copolymer of a polydiene. Methods of preparing a polyurethane are also provided.

First claim

What is claimed:

1 . A composition for making a polyurethane comprising one or more polyols and one or more isocyanate-group containing compounds,
wherein at least one of the one or more polyols is a farnesene-based polyol, and wherein the one or more isocyanate-group containing compounds have an isocyanate group functionality of at least two.

2 . The composition of claim 1 , wherein the farnesene-based polyol is a copolymer of farnesene and a comonomer selected from dienes, vinyl aromatics, and combinations thereof.

3 . The composition of claim 2 , wherein the dienes are selected from the group consisting of butadiene, isoprene, and combinations thereof.

4 . The composition of claim 2 , wherein the vinyl aromatics are selected from the group consisting of styrene and alpha methyl styrene.

5 . The composition of claim 1 further comprising a chain extender.

6 . The composition of claim 4 , wherein the chain extender is selected from the group consisting of monomeric polyols and polyamines.

7 . The composition of claim 1 , wherein the one or more polyols further comprises a polyol of a homopolymer or copolymer of a polydiene.

8 . The composition of claim 1 comprising an NCO/OH ratio of about 2:1 to 1:2.

9 . The composition of claim 1 , wherein the farnesene-based polyol has a number average molecular weight less than or equal to 100,000 g/mol.

10 . The composition of claim 1 , wherein the farnesene-based polyol has a number average molecular weight less than or equal to 25,000 g/mol.

11 . The composition of claim 1 , wherein the farnesene-based polyol has a viscosity at 25° C. less than 10,000 cP.

12 . The composition of claim 1 , wherein the farnesene-based polyol has a degree of unsaturation less than or equal to 50%.

13 . The composition of claim 1 , wherein the farnesene-based polyol has a degree of unsaturation less than or equal to 10%.

14 .- 27 . (canceled)

Assignees

• Fina Technology

Inventors

• Tian Nan
• Chao Herbert

Classifications

• C08F136/22

  the radical having three or more carbon-to-carbon double bonds · CPC title

• C08G18/12

  using two or more compounds having active hydrogen in the first polymerisation step · CPC title

• C08G18/6208

  Hydrogenated polymers of conjugated dienes · CPC title

• C09D175/14

  Polyurethanes having carbon-to-carbon unsaturated bonds · CPC title

• C08F236/22

  the radical having three or more carbon-to-carbon double bonds · CPC title