US4048001A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyurethane textile adhesive
Assignee: Wyeth Holdings LLC
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Filing: 1975-03-05
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Granted: 1977-09-13
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Expires: 1995-03-05
Abstract
Abstract Textile adhesive compositions. More particularly, aqueous adhesive compositions comprising a plasticizing agent and a dispersed polyurethane polymer, the method of using the adhesive composition in textile applications and the textile materials thus obtained.
Inventors
- 👤 Kenneth Herald Remley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:29
CPC Classifications
D; D06; D06M; D06M17/00; D06M17/04; D06M17/10; C; C08; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/0804; C08G18/0819; C08G18/0823; C08G18/10; C08G18/12; C09; C09J; C09J175/00; C09J175/04; C08G2170/00; C08G2170/80; C08L; C08L2666/00; C08L2666/02; C08L2666/28; Y; Y10; Y10T; Y10T428/00; Y10T428/23907; Y10T428/23943
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
133 words
A process for preparing a polyurethane textile adhesive composition in the form of an aqueous dispersion comprising the steps of: 1. forming an isocyanate-terminated prepolymer in the presence of from about 10 to 30% by weight thereof of a low molecular weight polymeric plasticizer, by the reaction of from about 1.0 to 1.7 moles of tolylene diisocyanate per mole of a mixture of three hydroxy compounds consisting of: ##STR4## wherein R is hydrogen, or lower alkyl, ##STR5## wherein R is hydrogen, or lower alkyl, and R' is lower hydroxyalkyl, and ##STR6## wherein R 1 is hydrogen, or lower alkyl, and q is an integer sufficiently large to provide an average molecular weight from about 1750 to about 5,000, the molar ratio of (a) to (b) to (c) ranging from 2.0-7.5: 1.0: 2.0-7.5 2.
Claim 2
Dependent Claim
133 words
A process for preparing a polyurethane textile adhesive composition in the form of an aqueous dispersion comprising the steps of: 1. forming an isocyanate-terminated prepolymer in the presence of from about 10 to 30% by weight thereof of a low molecular weight polymeric plasticizer, by the reaction of from about 1.0 to 1.7 moles of tolylene diisocyanate per mole of a mixture of three hydroxy compounds consisting of: ##STR4## wherein R is hydrogen, or lower alkyl, ##STR5## wherein R is hydrogen, or lower alkyl, and R' is lower hydroxyalkyl, and ##STR6## wherein R 1 is hydrogen, or lower alkyl, and q is an integer sufficiently large to provide an average molecular weight from about 1750 to about 5,000, the molar ratio of (a) to (b) to (c) ranging from 2.0-7.5: 1.0: 2.0-7.5 2.
Claim 3
Dependent Claim
69 words
forming a latex by stirring said isocyanate-terminated prepolymer mixture in an aqueous medium containing a tertiary amine until all of the residual isocyanate groups have reacted with water; 3. adjusting the viscosity of the latex by adding a thickening agent thereto; 4. applying the composition obtained from step (3) to a textile material or other material; and 5. forming an adhesive bond between said textile material or said other
Claim 4
Dependent Claim
69 words
forming a latex by stirring said isocyanate-terminated prepolymer mixture in an aqueous medium containing a tertiary amine until all of the residual isocyanate groups have reacted with water; 3. adjusting the viscosity of the latex by adding a thickening agent thereto; 4. applying the composition obtained from step (3) to a textile material or other material; and 5. forming an adhesive bond between said textile material or said other
Claim 5
Dependent Claim
47 words
material and another textile material with said composition. 2. The process of claim 1, wherein said isocyanate-terminated prepolymer is formed in the presence of about 15-25% by weight thereof of a low molecular weight polymeric plasticizer, having a molecular weight ranging from about 500 to about 1000.
Claim 6
Dependent Claim
14 words
The process of claim 1 wherein the tertiary amine is a tertiary aliphatic amine.
Claim 7
Dependent Claim
15 words
A process according to claim 1 wherein said other material is a flocked textile material.
Claim 8
Dependent Claim
8 words
The product as obtained according to claim 1.
Claim 9
Dependent Claim
33 words
The process of claim 1 wherein said isocyanate-terminated prepolymer is formed by the reaction of about 1.2 to about 1.4 moles of tolylene diisocyante per mole of a mixture of three hydroxy compounds.
Claim 10
Dependent Claim
22 words
The process of claim 1 wherein the molar ratios of hydroxy compounds (a) to (b) to (c) ranges from 2.5-5.0: 1.0: 2.5-5.0.
Claim 11
Dependent Claim
19 words
The process of claim 1 wherein the molar ratios of hydroxy compounds (a) to (c) ranges from 0.5-2.0: 1.0.
Claim 12
Dependent Claim
12 words
The process of claim 1 wherein said tertiary amine is triethyl amine.
Claim 13
Dependent Claim
19 words
The process of claim 1 wherein viscosities of thickened adhesive compositions range from about 500 to about 150,000 cps.
Claim 14
Dependent Claim
15 words
The process of claim 1 wherein the thickening agent is an acid-containing, cross-linked copolymer emulsion.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-09-12 | 1981-03-14 | 1981-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-09-12 | 1985-03-14 | 1985-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-09-12 | 1989-03-14 | 1989-09-13 | $7700.00 | Window Closed / Lapsed |