US4145338A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plasticized polyvinyl acetate compositions
Assignee: Eneos Corp
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Filing: 1977-12-20
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Granted: 1979-03-20
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Expires: 1997-12-20
Abstract
Abstract Polyvinyl acetate compositions are provided for use as adhesive and coating agents and contain plasticizers readily available from aromatic compounds, which plasticizers are highly compatible with polyvinyl acetate and free of toxic components.
Inventors
- 👤 Saburo Matsubara
- 👤 Sakuya Iwai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:58
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/01
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
202 words
A polyvinyl acetate composition comprising: (I) 100 parts by weight of polyvinyl acetate or polyvinyl acetate copolymer; and (II) 0.1 to 50 parts by weight of one or more of plasticizers selected from the compounds defined by the formulae: Ar.sub.1 -- R -- Ar.sub.2 (i) where Ar 1 and Ar 2 are the same or different benzene or alkylbenzene rings, and R is an alkylene group having a carbon number of 2 to 3, the compounds of this formula having a molecular weight of from 173 to 263; Ar.sub.1 -- R.sub.1 -- Ar.sub.2 -- R.sub.2 -- Ar.sub.3 (ii) where Ar 1 , Ar 2 and Ar 3 are the same or different benzene or alkylbenzene rings, and R 1 and R 2 are the same or different alkylene groups having a carbon number of 2 to 3, the compounds of this formula having a molecular weight of from 300 to 398; and ##STR2## where Ar 1 , Ar 2 and Ar 3 are the same or different benzene or alkylbenzene rings, and R is a straight-chain or branched-chain hydrocarbon group having a carbon number of 4 to 6, the compounds of this formula having a molecular weight of from 300 to 398.
Claim 2
Dependent Claim
202 words
A polyvinyl acetate composition comprising: (I) 100 parts by weight of polyvinyl acetate or polyvinyl acetate copolymer; and (II) 0.1 to 50 parts by weight of one or more of plasticizers selected from the compounds defined by the formulae: Ar.sub.1 -- R -- Ar.sub.2 (i) where Ar 1 and Ar 2 are the same or different benzene or alkylbenzene rings, and R is an alkylene group having a carbon number of 2 to 3, the compounds of this formula having a molecular weight of from 173 to 263; Ar.sub.1 -- R.sub.1 -- Ar.sub.2 -- R.sub.2 -- Ar.sub.3 (ii) where Ar 1 , Ar 2 and Ar 3 are the same or different benzene or alkylbenzene rings, and R 1 and R 2 are the same or different alkylene groups having a carbon number of 2 to 3, the compounds of this formula having a molecular weight of from 300 to 398; and ##STR2## where Ar 1 , Ar 2 and Ar 3 are the same or different benzene or alkylbenzene rings, and R is a straight-chain or branched-chain hydrocarbon group having a carbon number of 4 to 6, the compounds of this formula having a molecular weight of from 300 to 398.
Claim 3
Dependent Claim
24 words
A composition as claimed in claim 1 wherein said plasticizers result from the reaction of styrene with alkylbenzene in the presence of acidic catalysts.
Claim 4
Dependent Claim
39 words
A composition as claimed in claim 1 wherein said plasticizers are selected from the group consisting of α-methylbenzyl toluene, α-,α'-dimethylbenzyl toluene, α-methylbenzyl xylene, α-,α'-dimethylbenzyl xylene, bis-(α-methylbenzyl) toluene, bis-(α-methylbenzyl) xylene, bis-(α,α'-dimethylbenzyl toluene, bis-(α,α'-dimethylbenzyl) xylene, α-methylbenzyl-α-methyl (dimethyl) benzyl-benzene, 1-phenyl-1-xylyl-3-phenylbutane, and 1,3,5-triphenylhexane.
Claim 5
Dependent Claim
40 words
A composition as claimed in claim 1 wherein the compounds of the formula (ii) and/or the formula (iii) or mixtures thereof are added in amounts of 50 weight % based on the compounds of the formula (i) or mixtures thereof.
Claim 6
Dependent Claim
79 words
A composition as claimed in claim 1 wherein said polyvinyl acetate copolymer results from the polymerization of vinyl acetate and at least one monomer copolymerizable therewith, said monomer being (1) ethylene, (2) vinylidene chloride (3) an unsaturated carboxylic acid or a functional derivative thereof which is selected from the group consisting of acrylic acid esters, methacrylic acid esters, acrylic acid, methacrylic acid, crotonic acid, itaconic acid, maleic acid, fumaric acid, N-methylolacrylamide, and glycidyl methacrylate, and (4) other vinyl monomers.
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) | 1982-03-19 | 1982-09-18 | 1983-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-03-19 | 1986-09-18 | 1987-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-03-19 | 1990-09-18 | 1991-03-20 | $7700.00 | Window Closed / Lapsed |