US5455309A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods of making and using thermoplastic block copolymers
Assignee: Henkel AG and Co KGaA
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Filing: 1990-08-03
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Granted: 1995-10-03
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Expires: 2010-08-03
Abstract
Abstract Methods of producing thermoplastic poly(amide-urethane) block copolymers having excellent flexibility at low temperatures are provided. The methods comprise reacting substantially linear polyamides, the polyamides being based on dimerized fatty acids and terminated by carboxyl and/or amino groups and aliphatic or cycloaliphatic polyethers and/or reaction products thereof with 2,3-epoxypropanol. The reaction products contain substantially no free isocyanate groups or epoxide groups. The invention also relates to the use of these products as adhesives and corrosion inhibitors for metallic and/or wooden materials.
Inventors
- 👤 Italo Albini
- 👤 Werner Gruber
- 👤 Norbert Wiemers
- 👤 Juergen Wichelhaus
- 👤 Roberto Leoni
- 👤 Angela Rossini
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:23
CPC Classifications
C; C08; C08G; C08G81/00; C08G18/00; C08G18/06; C08G18/08; C08G18/10; C08G18/28; C08G18/40; C08G18/60; C08G18/603; C08G59/00; C08G59/18; C08G59/40; C08G59/50; C08G59/54; C08G2150/00; C08G2150/20; C08G2170/00; C08G2170/20
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
103 words
A thermoplastic poly (amide-urethane) block copolymer comprising: a) the residue of at least one polyamide block comprising at least one substantially linear polyamide having terminal groups selected from the group consisting of carboxyl groups and amino groups wherein the substantially linear polyamide comprises the residues of at least one dimerized fatty acid and at least one aliphatic or cycloaliphatic diamine; and b) the residue of at least one block selected from the group consisting of substantially linear, isocyanate-terminated polyurethane block formed from reaction of a diisocyanate with an aliphatic polyether diol and reaction products of the isocyanate terminated polyurethane block with 2,3-epoxy propanol.
Claim 2
Dependent Claim
103 words
A thermoplastic poly (amide-urethane) block copolymer comprising: a) the residue of at least one polyamide block comprising at least one substantially linear polyamide having terminal groups selected from the group consisting of carboxyl groups and amino groups wherein the substantially linear polyamide comprises the residues of at least one dimerized fatty acid and at least one aliphatic or cycloaliphatic diamine; and b) the residue of at least one block selected from the group consisting of substantially linear, isocyanate-terminated polyurethane block formed from reaction of a diisocyanate with an aliphatic polyether diol and reaction products of the isocyanate terminated polyurethane block with 2,3-epoxy propanol.
Claim 3
Dependent Claim
29 words
The thermoplastic block copolymer of claim 1, wherein the block copolymer has a structure represented by: ##STR2## wherein PA represents a polyamide chain and PUR represents a polyurethane chain.
Claim 4
Dependent Claim
29 words
The thermoplastic block copolymer of claim 1, wherein the block copolymer has a structure represented by: ##STR3## wherein PA represents a polyamide chain and PUR represents a polyurethane chain.
Claim 5
Dependent Claim
15 words
The thermoplastic block copolymer of claim 2 in the form of a PA--PUR diblock system.
Claim 6
Dependent Claim
15 words
The thermoplastic block copolymer of claim 3 in the form of a PA--PUR diblock system.
Claim 7
Dependent Claim
15 words
The thermoplastic block copolymer of claim 2 in the form of a PA--PUR--PA multiblock system.
Claim 8
Dependent Claim
15 words
The thermoplastic block copolymer of claim 3 in the form of a PA--PUR--PA multiblock system.
Claim 9
Dependent Claim
80 words
A thermoplastic block copolymer of claim 1 wherein the polyamide block comprises the residues of a condensation reaction product of from about 20 to about 49.5 mol % of a dimerized fatty acid, from about 0.5 to about 15 mole % of a monomeric fatty acid having from about 14 to about 22 carbon atoms and from about 20 to about 49.5 mole % of at least one aliphatic or cycloaliphatic diamine containing from 2 to about 40 carbon atoms.
Claim 10
Dependent Claim
28 words
A thermoplastic block a polymer of claim 8 wherein the aliphatic or cycloaliphatic diamine which form the condensation reaction product contains from 2 to about 12 carbon atoms.
Claim 11
Dependent Claim
26 words
The block copolymer of claim 1 wherein the substantially linear polyamide comprises an acid number or an amine number of from about 0.3 to about 50.
Claim 12
Dependent Claim
29 words
The block copolymer of claim 10 wherein the substantially linear polyamide comprises an acid number or an amine number in the range of from about 1 to about 15.
Claim 13
Dependent Claim
32 words
A block copolymer of claim 1 wherein the isocyanate-terminated linear polyurethane block comprises the reaction product of an aliphatic polyether diol with from about 1 to about 1.6 equivalents of a diisocyanate.
Claim 14
Dependent Claim
20 words
A block copolymer of claim 12 wherein the linear isocyanate-terminated polyurethane block comprises polyoxypropylene glycol or a polyoxytetramethylene glycol residue.
Claim 15
Dependent Claim
30 words
A block copolymer of claim 1 wherein the isocyanate-terminated linear polyurethane block comprises glycol residues having an average molecular weight in the range of from about 300 to about 4000.
Claim 16
Dependent Claim
25 words
A block copolymer of claim 14 wherein the glycol residue has an average molecular weight in the range of from about 1000 to about 3000.
Claim 17
Dependent Claim
37 words
A thermoplastic block copolymer of claim 1 wherein the isocyanate-terminated polyurethane block comprises the reaction product of at least one polyether with at least one diisocyanate selected from the group consisting of toluene diisocyanate and diphenylmethane diisocyanate.
Claim 18
Dependent Claim
9 words
A hot-melt adhesive comprising a composition of claim 1.
Claim 19
Dependent Claim
9 words
A hot-melt adhesive comprising a composition of claim 8.
Claim 20
Dependent Claim
9 words
A hot-melt adhesive comprising a composition of claim 15.
Claim 21
Dependent Claim
9 words
A hot-melt adhesive comprising a composition of claim 16.
References Cited (Backward Citations)
US3475383A
Cited
US4977213A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-10-02 | 1999-04-03 | 1999-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-10-02 | 2003-04-03 | 2003-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-10-02 | 2007-04-03 | 2007-10-03 | $7700.00 | Window Closed / Lapsed |