US5063106A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermoplastic plasticizer-resistant film and pressure-sensitive adhesive film comprising the plasticizer-resistant film
Assignee: Avery Dennison Corp
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Filing: 1989-02-21
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Granted: 1991-11-05
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Expires: 2009-02-21
Abstract
Abstract There is provided a plasticizer-resistant film, and such film is combined with a plasticizer-resistant, pressure-sensitive adhesive layer. The film is a blend of certain polyvinyl chlorides and chlorinated polyethylenes. The adhesive includes a polyacrylate.
Inventors
- 👤 O. V. Nieuwenhuize
- 👤 F. de Grunt
- 👤 S. de Vissser
- 👤 R. Vos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:16
CPC Classifications
C; C08; C08J; C08J5/00; C08J5/18; C08L; C08L23/00; C08L23/26; C08L23/28; C08L23/286; C08L27/00; C08L27/02; C08L27/04; C08L27/06; C09; C09J; C09J7/00; C09J7/20; C09J7/22; C09J7/24; C08J2323/00; C08J2323/26; C08J2323/28; C08J2327/00; C08J2327/02; C08J2327/04; C08J2327/06; Y; Y10; Y10T; Y10T428/00; Y10T428/28; Y10T428/2852; Y10T428/2878; Y10T428/2887; Y10T428/2891; Y10T428/31504; Y10T428/31855; Y10T428/31909; Y10T428/31913; Y10T428/3192
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
101 words
A plasticizer-resistant film comprised of a layer formed of a blend of polyvinyl chloride and chlorinated polyethylene in respective weight rations of 10:90 to 65:35 in which the polyvinyl chloride has a K-value of 45 to 80 and the chloride content of the chlorinated polyethylene is from 30 to 40% by weight, said film being receptive to retaining diffused plasticizer from a plasticized substrate without becoming sticky and in contact with said layer, a plasticizer-resistant, pressure-sensitive adhesive which retains adhesion in the presence of a plasticizer, said adhesive comprising a polymer containing an alkyl acrylate or alkyl methacrylate or mixtures thereof.
Claim 2
Dependent Claim
101 words
A plasticizer-resistant film comprised of a layer formed of a blend of polyvinyl chloride and chlorinated polyethylene in respective weight rations of 10:90 to 65:35 in which the polyvinyl chloride has a K-value of 45 to 80 and the chloride content of the chlorinated polyethylene is from 30 to 40% by weight, said film being receptive to retaining diffused plasticizer from a plasticized substrate without becoming sticky and in contact with said layer, a plasticizer-resistant, pressure-sensitive adhesive which retains adhesion in the presence of a plasticizer, said adhesive comprising a polymer containing an alkyl acrylate or alkyl methacrylate or mixtures thereof.
Claim 3
Dependent Claim
25 words
A pressure-sensitive adhesive film as claimed in claim 6 in which the weight ratio of polyvinyl chloride to chlorinated polyethylene is from 35:65 to 65:35.
Claim 4
Dependent Claim
22 words
A pressure-sensitive adhesive film as claimed in claim 6 in which the polyvinyl chloride polymer has a K-value of 50 to 65.
Claim 5
Dependent Claim
31 words
A pressure-sensitive adhesive film as claimed in claim 6 in which the chlorinated polyethylene has a chlorine content of 42% by weight and a melt viscosity of 600 to 3,000 PaS.
Claim 6
Dependent Claim
34 words
A pressure-sensitive adhesive film as claimed in claim 6 in which there is present in the film an ethylene vinyl acetate polymer present in an amount up to 10% by weight of the polymers.
Claim 7
Dependent Claim
28 words
A pressure-sensitive adhesive film as claimed in claim 6 in which the pressure-sensitive adhesive is applied at a coat weight of preferably 30 to 50 g/m 2 .
Claim 8
Dependent Claim
16 words
A pressure-sensitive adhesive as claimed in claim 6 in which the pressure-sensitive adhesive comprises a polyacrylate.
Claim 9
Dependent Claim
32 words
A pressure-sensitive adhesive film as claimed in claim 6 in which the adhesive includes a dialkyl phthalate and from 10 to 35% by weight of a phthalic acid ester of hydroabretyl alcohol.
Claim 10
Dependent Claim
30 words
A pressure-sensitive adhesive film as claimed in claim 15 in which the dialkyl phthalate is present in an amount of from 0.5 to 5% by weight of the pressure-sensitive adhesive.
Claim 11
Dependent Claim
32 words
A pressure-sensitive adhesive film as claimed in claim 12 in which the adhesive includes a dialkyl phthalate and from 10 to 35% by weight of a phthalic acid ester of hydroabretyl alcohol.
Claim 12
Dependent Claim
30 words
A pressure-sensitive adhesive film as claimed in claim 15 in which the dialkyl phthalate is present in an amount of from 0.5 to 5% by weight of the pressure-sensitive adhesive.
Claim 13
Dependent Claim
41 words
A pressure-sensitive adhesive film as claimed in claim 14 in which the pressure-sensitive adhesive contains 72% by weight polyacrylate, 24% by weight of phthalic acid ester of hydroabretyl alcohol, 3.5% by weight dialkyl phthalate and 9.5% by weight aluminum acetyl acetonate.
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) | 1994-11-04 | 1995-05-06 | 1995-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-11-04 | 1999-05-06 | 1999-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-11-04 | 2003-05-06 | 2003-11-05 | $7700.00 | Window Closed / Lapsed |