US4046747A
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Additive for improving the adhesion to textiles of hot melt adhesives based on copolyamides
Assignee: Huels AG
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Filing: 1975-09-29
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Granted: 1977-09-06
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Expires: 1995-09-29
Abstract
Abstract Additives for textile hot melt adhesives based on copolyamides comprising, based on the total weight of copolyamide:
Inventors
- 👤 Anton Capelle
- 👤 Heinz Scholten
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:08
CPC Classifications
C; C09; C09J; C09J177/00; C08; C08K; C08K5/00; C08K5/04; C08K5/13; C08K5/16; C08K5/20; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31725
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
198 words
A polyamide adhesive composition consisting essentially of: A. about 96 to 99.9 by weight of a solid copolyamide of an aliphatic dicarboxylic acid, cyclic dicarboxylic acid each having 4-12 carbon atoms or mixtures thereof or said dicarboxylic acids and an equivalent amount of aliphatic diamine, cyclic diamine each having 4 - 15 carbon atoms or mixtures thereof or aminocarboxylic acid having 4-16 carbon atoms or mixtures thereof; and B. an additive of a. about 0.05 - 2 percent by weight based on the total weight of copolyamide of at least one acid amide of the general formula ##STR6## wherein R represents a saturated or unsaturated aliphatic hydrocarbon group having 12 - 20 carbon atoms, R 1 represents an alkyl group of 1 - 3 carbon atoms, and n represents an integer of between 3 and 6; and (b) about 0.05 - 2 percent by weight of a mixture of differently condensed aminoalkyl phenols of the general formula ##STR7## wherein n' has the value of 0.5 - 2, m has the value of 2 - 6, and R' represents an aliphatic hydrocarbon group having 8-10 carbon atoms which is in the ortho- or para-position with respect to the OH-group.
Claim 2
Dependent Claim
198 words
A polyamide adhesive composition consisting essentially of: A. about 96 to 99.9 by weight of a solid copolyamide of an aliphatic dicarboxylic acid, cyclic dicarboxylic acid each having 4-12 carbon atoms or mixtures thereof or said dicarboxylic acids and an equivalent amount of aliphatic diamine, cyclic diamine each having 4 - 15 carbon atoms or mixtures thereof or aminocarboxylic acid having 4-16 carbon atoms or mixtures thereof; and B. an additive of a. about 0.05 - 2 percent by weight based on the total weight of copolyamide of at least one acid amide of the general formula ##STR6## wherein R represents a saturated or unsaturated aliphatic hydrocarbon group having 12 - 20 carbon atoms, R 1 represents an alkyl group of 1 - 3 carbon atoms, and n represents an integer of between 3 and 6; and (b) about 0.05 - 2 percent by weight of a mixture of differently condensed aminoalkyl phenols of the general formula ##STR7## wherein n' has the value of 0.5 - 2, m has the value of 2 - 6, and R' represents an aliphatic hydrocarbon group having 8-10 carbon atoms which is in the ortho- or para-position with respect to the OH-group.
Claim 3
Dependent Claim
195 words
A polyamide adhesive composition consisting essentially of: A. about 96 to 99.9 percent by weight of a solid copolyamide of an aliphatic dicarboxylic acid, cyclic dicarboxylic acid each having 4 - 12 carbon atoms or mixtures thereof or said dicarboxyl acids and an equivalent amount of aliphatic diamine, cyclic diamine each having 4 - 15 carbon atoms or mixtures thereof or aminocarboxylic acid having 4 - 16 carbon atoms or mixtures thereof; and B. an additive of a. about 0.05 - 2 percent by weight based on the total weight of copolyamide of at least one acid amide of the general formula ##STR8## wherein R represents a saturated or unsaturated aliphatic hydrocarbon group having 12 - 20 carbon atoms and n represents an integer of between 3 and 6; and b. about 0.05 - 2 percent by weight of a mixture of differently condensed aminoalkyl phenols of the general formula ##STR9## wherein n' has the value of 0.5 - 2, m has the value of 2 - 6, and R' represents an aliphatic hydrocarbon group having 8 - 10 carbon atoms which is in the ortho- or para- position with respect to the OH group.
Claim 4
Dependent Claim
195 words
A polyamide adhesive composition consisting essentially of: A. about 96 to 99.9 percent by weight of a solid copolyamide of an aliphatic dicarboxylic acid, cyclic dicarboxylic acid each having 4 - 12 carbon atoms or mixtures thereof or said dicarboxyl acids and an equivalent amount of aliphatic diamine, cyclic diamine each having 4 - 15 carbon atoms or mixtures thereof or aminocarboxylic acid having 4 - 16 carbon atoms or mixtures thereof; and B. an additive of a. about 0.05 - 2 percent by weight based on the total weight of copolyamide of at least one acid amide of the general formula ##STR8## wherein R represents a saturated or unsaturated aliphatic hydrocarbon group having 12 - 20 carbon atoms and n represents an integer of between 3 and 6; and b. about 0.05 - 2 percent by weight of a mixture of differently condensed aminoalkyl phenols of the general formula ##STR9## wherein n' has the value of 0.5 - 2, m has the value of 2 - 6, and R' represents an aliphatic hydrocarbon group having 8 - 10 carbon atoms which is in the ortho- or para- position with respect to the OH group.
Claim 5
Dependent Claim
78 words
The polyamide adhesive composition of claim 1 wherein said copolyamide of A is selected from the group consisting of a terpolyamide of lauryl lactam, hexamethylene adipamide and caprolactam; a terpolyamide of lauryl lactam, dodecamethylene adipamide and caprolactam; a terpolyamide of caprolactam, hexamethylene adipamide and dodecamethylene adipamide; a terpolyamide of caprolactam, hexamethylene dodecamide and lauryl lactam; and terpolyamide of lauryl lactam, caprolactam, and X-adipic acid wherein X is selected from the group consisting of isophoronediamine, trimethylhexamethylenediamine and mixtures thereof.
Claim 6
Dependent Claim
79 words
The polyamide adhesive composition of claim 2 wherein said copolyamide of A is selected from the group consisting of a terpolyamide of lauryl lactam, hexamethylene adipamide, and caprolactam; a terpolyamide of lauryl lactam, dodecamethylene adipamide and caprolactam; a terpolyamide of caprolactam, hexamethylene adipamide and dodecamethylene adipamide; a terpolyamide of caprolactam, hexamethylene dodecamide and lauryl lactam; and a terpolyamide of lauryl lactam, caprolactam, and X-adipic acid wherein X is selected from the group consisting of isophoronediamine, trimethylhexamethylenediamine and mixtures thereof.
References Cited (Backward Citations)
US3859378A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-09-05 | 1981-03-07 | 1981-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-09-05 | 1985-03-07 | 1985-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-09-05 | 1989-03-07 | 1989-09-06 | $7700.00 | Window Closed / Lapsed |