US4704445A
Expired / Lapsed
US
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Polyurethane compositions
Assignee: Kuraray Co Ltd
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Filing: 1986-10-10
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Granted: 1987-11-03
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Expires: 2006-10-10
Abstract
Abstract Novel polyurethane compositions having excellent bond strength, thermal resistance and resistance to hot water are provided by a polymeric polyol and an organic polyisocyanate at a hydroxyl group/isocyanate group equivalent ratio (NCO/OH) of 1 to 10, wherein said polymeric polyol is a polyurethane polyol prepared from a polyester polyol and an organic diisocyanate, said polyurethane polyol having a number average molecular weight of 3,000 to 50,000, said polyester polyol being composed of the following structural unit -O-CH2-CH2-CH(CH3)-CH2-CH2-O-(I) the following dicarboxylic acid structural unit -CO-(CH2)n-CO-(II) wherein n is an integer from 1 to 12, and the following dicarboxylic acid structural unit -CO-Ar-CO-(III) wherein Ar is the divalent residue of an aromatic hydrocarbon of 6 to 10 carbon atoms, and the molar ratio of structural unit (II) to structural unit (III) being in the range from 1/5 to 5/1, and said polyester polyol having a number average molecular weight of 600 to 8,000.
Inventors
- 👤 Yukiatsu Komiya
- 👤 Koji Hirai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:04
CPC Classifications
C; C09; C09J; C09J175/00; C09J175/04; C09J175/06; C08; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/10; C08G18/28; C08G18/40; C08G18/42; C08G18/4205; C08G18/4208; C08G18/4211; C08G18/4216; C08G18/46; C08G18/4615
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
147 words
Polyurethane compositions comprising a polymeric polyol (A) and an organic polyisocyanate (B) at a hydroxyl group/isocyanate group equivalent ratio (NCO/OH) of 1 to 10, wherein said polymeric polyol (A) is a polyurethane polyol prepared from a polyester polyol and an organic diisocyanate, said polyurethane polyol having a number average molecular weight of 3,000 to 50,000, said polyester polyol being composed of the following structureal unit --O--CH.sub.2 --CH.sub.2 --CH(CH.sub.3)--CH.sub.2 --CH.sub.2 --O--(I) the following dicarboxylic acid structural unit --CO--(CH.sub.2).sub.n --CO-- (II) wherein n is a integer from 1 to 12, and the following dicarboxylic acid structural unit --CO--Ar--CO-- (III) wherein Ar is the divalent residue of an aromatic hydrocarbon of 6 to 10 carbon atoms, and the molar ratio of structural unit (II) to structural unit (III) being in the range from 1/5 to 5/1, and said polyester polyol having a number average molecular weight of 600 to 8,000.
Claim 2
Dependent Claim
147 words
Polyurethane compositions comprising a polymeric polyol (A) and an organic polyisocyanate (B) at a hydroxyl group/isocyanate group equivalent ratio (NCO/OH) of 1 to 10, wherein said polymeric polyol (A) is a polyurethane polyol prepared from a polyester polyol and an organic diisocyanate, said polyurethane polyol having a number average molecular weight of 3,000 to 50,000, said polyester polyol being composed of the following structureal unit --O--CH.sub.2 --CH.sub.2 --CH(CH.sub.3)--CH.sub.2 --CH.sub.2 --O--(I) the following dicarboxylic acid structural unit --CO--(CH.sub.2).sub.n --CO-- (II) wherein n is a integer from 1 to 12, and the following dicarboxylic acid structural unit --CO--Ar--CO-- (III) wherein Ar is the divalent residue of an aromatic hydrocarbon of 6 to 10 carbon atoms, and the molar ratio of structural unit (II) to structural unit (III) being in the range from 1/5 to 5/1, and said polyester polyol having a number average molecular weight of 600 to 8,000.
Claim 3
Dependent Claim
30 words
The polyurethane compositions as defined in claim 1, wherein a compound having at least one hydroxyl group and at least one epoxy ring in the molecule (C) is further contained.
Claim 4
Dependent Claim
133 words
The polyurethane compositions as defined in claim 1 or 2, wherein said polymeric polyol (A) is a polyurethane polyol prepared from a polyester diol and an organic diisocyanate, said polyurethane polyol having a number average molecular weight of 3,000 to 50,000, said polyester diol being composed of the following structureal unit --O--CH.sub.2 --CH.sub.2 --CH(CH.sub.3)--CH.sub.2 --CH.sub.2 --O--(I) the following dicarboxylic acid structural unit --CO--(CH.sub.2).sub.n --CO-- (II) wherein n is an integer from 1 to 12, and the following dicarboxylic acid structural unit --CO--Ar--CO-- (III) wherein Ar is the divalent residue of an aromatic hydrocarbon of 6 to 10 carbon atoms, and the molar ratio of structural unit (II) to structural unit (III) being in the range from 1/5 to 5/1, and said polyester polyol having a number average molecular weight of 1,500 to 2,200.
Claim 5
Dependent Claim
25 words
The polyurethane compositions as defined in any of claims 1 through 3, wherein said organic diisocyanate is composed mainly of isophorone diisocyanate or 2,4-tolylene diisocyanate.
Claim 6
Dependent Claim
26 words
The polyurethane compositions as defined in any of claims 1 through 4, wherein said structural unit (II) is the residue of sebacic acid or adipic acid.
Claim 7
Dependent Claim
26 words
The polyurethane compositions as defined in any of claims 1 through 5, wherein said structural unit (III) is the residue of terephthalic acid or isophtalic acid.
Claim 8
Dependent Claim
32 words
The polyurethane compositions as defined in any of claims 1 through 6, wherein the molar ratio of structural unit (II) to structural unit (III) is in the range from 1/2 to 2/1.
Claim 9
Dependent Claim
55 words
The polyurethane composition as defined in any of claims 1 to 7, wherein said compound (C) having at least one hydroxyl group and at least one epoxy ring in the molecule is a reaction product of a polyhydric phenol or polyhydric alcohol with a polyfunctional halohydrine or a reaction product thereof with a hydroxyl-containing compound.
Claim 10
Dependent Claim
17 words
The polyurethane compositions as defined in claim 8, wherein said polyhydric phenol is bisphenol A or tetrahydroxydiphenylethane.
Claim 11
Dependent Claim
16 words
The polyurethane compositions as defined in claim 8, wherein said polyhydric alcohol is glycerol or pentaerythritol.
Claim 12
Dependent Claim
14 words
The polyurethane compositions as defined in claim 8, wherein said polyfunctional halohydrine is epichlorohydrine.
Claim 13
Dependent Claim
147 words
Adhesive compositions comprising a polymeric polyol (A) and an organic polyisocyanate (B) at a hydroxyl group/isocyanate group equivalent ratio (NCO/OH) of 1 to 10, wherein said polymeric polyol (A) is a polyurethane polyol prepared from a polyester polyol and an organic diisocyanate, said polyurethane polyol having a number average molecular weight of 3,000 to 50,000, said polyester polyol being composed of the following structureal unit --O--CH.sub.2 --CH.sub.2 --CH(CH.sub.3)--CH.sub.2 --CH.sub.2 --O--(I) the following dicarboxylic acid structural unit --CO--(CH.sub.2).sub.n --CO-- (II) wherein n is an integer from 1 to 12, and the following dicarboxylic acid structural unit --CO--Ar--CO-- (III) wherein Ar is the divalent residue of an aromatic hydrocarbon of 6 to 10 carbon atoms, and the molar ratio of structural unit (II) to structural unit (III) being in the range from 1/5 to 5/1, and said polyester polyol having a number average molecular weight of 600 to 8,000.
Claim 14
Dependent Claim
147 words
Adhesive compositions comprising a polymeric polyol (A) and an organic polyisocyanate (B) at a hydroxyl group/isocyanate group equivalent ratio (NCO/OH) of 1 to 10, wherein said polymeric polyol (A) is a polyurethane polyol prepared from a polyester polyol and an organic diisocyanate, said polyurethane polyol having a number average molecular weight of 3,000 to 50,000, said polyester polyol being composed of the following structureal unit --O--CH.sub.2 --CH.sub.2 --CH(CH.sub.3)--CH.sub.2 --CH.sub.2 --O--(I) the following dicarboxylic acid structural unit --CO--(CH.sub.2).sub.n --CO-- (II) wherein n is an integer from 1 to 12, and the following dicarboxylic acid structural unit --CO--Ar--CO-- (III) wherein Ar is the divalent residue of an aromatic hydrocarbon of 6 to 10 carbon atoms, and the molar ratio of structural unit (II) to structural unit (III) being in the range from 1/5 to 5/1, and said polyester polyol having a number average molecular weight of 600 to 8,000.
Claim 15
Dependent Claim
30 words
The adhesive compositions as defined in claim 12, wherein a compound having at least one hydroxyl group and at least one epoxy ring in the molecule (C) is further contained.
Claim 16
Dependent Claim
23 words
The adhesive compositions as defined in claim 12 or 13, wherein said organic diisocyanate is composed mainly of isophorone diisocyanate or 2,4-tolylene diisocyanate.
Claim 17
Dependent Claim
26 words
The adhesive compositions as defined in any of clims 12 through 14, wherein said structural unit (II) is the residue of sebacic acid or adipic acid.
Claim 18
Dependent Claim
26 words
The adhesive compositions as defined in any of clims 12 through 14, wherein said structural unit (II) is the residue of sebacic acid or adipic acid.
Claim 19
Dependent Claim
26 words
The adhesive compositions as defined in any of claims 12 through 15, wherein said structural unit (III) is the residue of terephtalic acid or isophthalic acid.
Claim 20
Dependent Claim
31 words
The adhesive compositions as defined in any of claims 12 through 16, wherein said molar ratio of structural unit (II) to structural unit (III) is in range from 1/2 to 2/1.
References Cited (Backward Citations)
US4483970A
Cited
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1990-11-02 | 1991-05-04 | 1991-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-11-02 | 1995-05-04 | 1995-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-11-02 | 1999-05-04 | 1999-11-03 | $7700.00 | Window Closed / Lapsed |