Polyol Composition

Patent metadata

Field	Value
Publication number	US-10087279-B2
Application number	US-201415028307-A
Country	US
Kind code	B2
Filing date	Oct 21, 2014
Priority date	Oct 24, 2013
Publication date	Oct 2, 2018
Grant date	Oct 2, 2018

Abstract

The present invention provides a polyol composition including a polyol having a polyester chain, wherein the polyol composition substantially contains no metal-base polymerization catalyst and an amount of phosphorus element derived from a polymerization catalyst is 1 to 1000 ppm. Furthermore, a method for producing a polyol composition is provided, including reacting a compound having an active hydrogen with a compound having at least one selected from the group consisting of carboxyl group, ester group and acid halide group in the presence of 0.0001-0.05 parts by mol of a phosphorus compound with respect to 1 part by mol of the active hydrogen without using a metal-based polymerization catalyst.

First claim

The invention claimed is:

1. A method for producing a polyol composition, comprising:
reacting a compound having an active hydrogen with a compound having at least one selected from the group consisting of a carboxyl group, ester group and acid halide group in the presence of 0.0001-0.05 parts by mol of a phosphorus compound with respect to 1 part by mol of the active hydrogen without using a metal-based polymerization catalyst, wherein:
the compound having an active hydrogen is a compound represented by formula (3),
TO-X 1 —OH  (3)

in formula (3), X 1 represents a polymer chain including a repeating unit derived from a conjugated diene, and T represents a hydrogen atom or an organic group substitutable with a hydrogen atom, and

the phosphorus compound is a compound represented by formula (2),

in formula (2), X represents a hydroxyl group or a mercapto group, Y represents an oxygen atom or a sulfur atom, R 1 and R 2 each independently represents a substituted or unsubstituted C1-20 hydrocarbon group, R 1 and R 2 may bond directly or via an atom or a functional group having two or more bonding hands to form a ring together with Z 1 , Z 2 and P, and Z 1 and Z 2 each independently represents an oxygen atom or a substituted nitrogen atom.

2. The method for producing a polyol composition according to claim 1 , wherein
the conjugated diene is butadiene.

3. The method for producing a polyol composition according to claim 1 , wherein
the compound having at least one selected from the group consisting of a carboxyl group, ester group and acid halide group is a cyclic ester compound.

4. The method for producing a polyol composition according to claim 3 , wherein
the cyclic ester compound is a compound represented by formula (1),

in formula (1), R 3 and R 4 each independently represents a hydrogen atom or an alkyl group, n represents an integer of 2 to 7, and R 3 s or R 4 s may be the same or different from each other.

5. The method for producing a polyol composition according to claim 3 , wherein
the cyclic ester compound is at least one selected from the group consisting of ε-caprolactone, γ-butyrolactone, and δ-valerolactone.

6. A polyol composition obtained by the method for producing a polyol composition according to claim 1 , comprising a polyol having a polyester chain, wherein the polyol composition substantially contains no metal-based polymerization catalyst, and an amount of phosphorus element derived from a polymerization catalyst is 1 to 1000 ppm.

7. The polyol composition according to claim 6 , wherein the polyol further has a polyconjugated diene chain.

8. The polyol composition according to claim 7 , wherein the polyconjugated diene chain is a polybutadiene.

9. A urethane prepolymer obtained by reacting the polyol composition defined in claim 6 with an organic polyisocyanate.

10. A polyurethane obtained by reacting the polyol composition defined in claim 6 with an organic polyisocyanate.

Assignees

• Nippon Soda Co

Inventors

• Nakamura Mitsuhiro
• Kimizuka Shinichi

Classifications

• C08G63/823

  for the preparation of polylactones or polylactides · CPC title

• C08G18/69

  Polymers of conjugated dienes {(hydrogenated polymers of conjugated dienes C08G18/6208)} · CPC title

• C08G18/7621

  being toluene diisocyanate including isomer mixtures · CPC title

• C08F8/14

  Esterification · CPC title

• C08G18/6208 Primary

  Hydrogenated polymers of conjugated dienes · CPC title