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US4652327A
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Bonding poly(vinylidene chloride)
Assignee: Union Camp Corp
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Filing: 1985-03-22
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Granted: 1987-03-24
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Expires: 2005-03-22
Abstract
Abstract The invention discloses the use of dimer based polyamide compositions as hot melt adhesives for poly(vinylidene chloride).
Inventors
- 👤 Kathryn S. Hayes
- 👤 Charles R. Frihart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:24
CPC Classifications
B; B32; B32B; B32B37/00; B32B37/12; C; C08; C08G; C08G69/00; C08G69/02; C08G69/26; C08G69/34; B32B27/00; B32B27/06; B32B27/08; B32B27/30; B32B27/304; B32B7/00; B32B7/04; B32B7/12; C08J; C08J5/00; C08J5/12; C08J5/124; C08J5/128; B32B2327/00; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31725; Y10T428/3175
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
247 words
A method of bonding a first poly(vinylidene chloride) to a member selected from the group consisting of a second poly(vinylidene chloride), poly(vinyl chloride), polyethylene, polypropylene, polyolefins, polyesters and polyamides, which comprises; (a) interposing between the first poly (vinylidene chloride) and the selected member, a molten form of a polyamide adhesive consisting essentially of the amidification product of: (1) from 10-90 equivalent percent of a diamine selected from the group consisting of piperazine, 1,3-bis-(4-piperidyl)propane, and mixtures thereof, (2) from 10-90 equivalent percent of a diamine of the formula H 2 NR 4 NH 2 where R 4 is selected from the group consisting of aliphatic, cycloaliphatic and aromatic hydrocarbon radicals having from 2 to 20 carbon atoms, (3) from 0-20 equivalent percent of a diamine of the formula H 2 NR 5 NH 2 where R 5 is selected from the group consisting of polyoxyalkylene radicals, (4) from 40-95 equivalent percent of polymeric fat acid having a dimeric fat acid content greater than 65% by weight, (5) from 5-60 equivalent percent of a dicarboxylic acid selected from the group consisting of R 2 OOC-COOR 2 and R 2 OOCR 3 COOR 2 where R 2 selected from the group consisting of hydrogen, alkyl and aryl groups containing from 1-8 carbon atoms and R 3 is a divalent, aliphatic, cycloaliphatic or aromatic hydrocarbon radical having from 1 to 20 carbon atoms; and (b) allowing the molten adhesive to solidify, whereby poly(vinylidene chloride) and the selected member are bonded together.
Claim 2
Independent Claim
247 words
A method of bonding a first poly(vinylidene chloride) to a member selected from the group consisting of a second poly(vinylidene chloride), poly(vinyl chloride), polyethylene, polypropylene, polyolefins, polyesters and polyamides, which comprises; (a) interposing between the first poly (vinylidene chloride) and the selected member, a molten form of a polyamide adhesive consisting essentially of the amidification product of: (1) from 10-90 equivalent percent of a diamine selected from the group consisting of piperazine, 1,3-bis-(4-piperidyl)propane, and mixtures thereof, (2) from 10-90 equivalent percent of a diamine of the formula H 2 NR 4 NH 2 where R 4 is selected from the group consisting of aliphatic, cycloaliphatic and aromatic hydrocarbon radicals having from 2 to 20 carbon atoms, (3) from 0-20 equivalent percent of a diamine of the formula H 2 NR 5 NH 2 where R 5 is selected from the group consisting of polyoxyalkylene radicals, (4) from 40-95 equivalent percent of polymeric fat acid having a dimeric fat acid content greater than 65% by weight, (5) from 5-60 equivalent percent of a dicarboxylic acid selected from the group consisting of R 2 OOC-COOR 2 and R 2 OOCR 3 COOR 2 where R 2 selected from the group consisting of hydrogen, alkyl and aryl groups containing from 1-8 carbon atoms and R 3 is a divalent, aliphatic, cycloaliphatic or aromatic hydrocarbon radical having from 1 to 20 carbon atoms; and (b) allowing the molten adhesive to solidify, whereby poly(vinylidene chloride) and the selected member are bonded together.
Claim 3
Dependent Claim
48 words
The method of claim 1 wherein the amidification product as defined is composed of the diamine (1) being from 40-80 equivalent percent of piperazine and the diamine (2) being from 20-60 equivalent percent of ethylenediamine or 1,6-hexamethylenediamine, and the diamine (3) being from 0-10 equivalent percent of polyglycoldiamine.
Claim 4
Dependent Claim
21 words
The method of claim 1 wherein the amidification product as defined is composed of the dicarboxylic acid (4) being azelaic acid.
Claim 5
Dependent Claim
21 words
The method of claim 1 wherein the amidification product as defined is composed of the dicarboxylic acid (4) being sebacic acid.
Claim 6
Dependent Claim
21 words
The method of claim 1 wherein the amidification product as defined is composed of the dicarboxylic acid (4) being 1,18-octadecanedicarboxylic acid.
Claim 7
Dependent Claim
21 words
The method of claim 1 wherein the amidification product as defined is composed of the dicarboxylic acid (4) being 1,16-hexadecanedicarboxylic acid.
Claim 8
Dependent Claim
19 words
The method of claim 1 wherein a coextrusion process is used for bonding the substrates with the amidification product.
Claim 9
Dependent Claim
19 words
The method of claim 1 wherein a thermoforming process is used for bonding the substrates with the amidification product.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-03-23 | 1990-09-22 | 1991-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-03-23 | 1994-09-22 | 1995-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-03-23 | 1998-09-22 | 1999-03-24 | $7700.00 | Window Closed / Lapsed |