US4091165A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surface processing copolymer for synthetic papers
Assignee: Mitsubishi Chemical Corp
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Filing: 1976-03-12
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Granted: 1978-05-23
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Expires: 1996-03-12
Abstract
Abstract An N-ampho-ionized copolymer treated with a monohaloacetic acid salt suitable for processing one or more surfaces of synthetic papers which imparts improved antistatic properties and printability to the synthetic papers, the copolymer comprising: (1) a monomer represented by general formula (I): ##STR1## (2) a monomer represented by the general formula (II): ##STR2## (3) a hydrophilic monomer (optional) and (4) a polymerizable hydrophobic vinyl monomer, is disclosed.
Inventors
- 👤 Kazuhide Hayama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:37
CPC Classifications
C; C08; C08F; C08F20/00; C08F20/02; C08F20/08; C08F20/10; C08F20/34; C08F220/00; C08F220/02; C08F220/10; C08F220/12; C08F220/16; C08F220/18; C08F220/1812; C08F220/1818; C08F220/34; C08J; C08J7/00; C08J7/04; C08J7/0427; C08J7/043; C08J7/044; C08J7/056; C08J2433/00; Y; Y10; Y10T; Y10T428/00; Y10T428/31; Y10T428/31504; Y10T428/31855; Y10T428/31909; Y10T428/31928; Y10T428/31935
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
173 words
A synthetic paper comprising a paper-like synthetic resin film or sheet having coated on at least one surface thereof an N-ampho-ionized copolymer treated with a monohaloacetic acid salt, said copolymer comprising: (1) about 25 to about 35% by weight of a monomer represented by general formula (I): ##STR36## wherein R 1 is a hydrogen atom or a methyl group, R 2 is an alkylene group having 1 to 4 carbon atoms and R 3 and R 4 are each an alkyl group having 1 to 4 carbon atoms; (2) about 30 to about 45% by weight of a monomer represented by general formula (II): ##STR37## wherein R 1 is the same as defined above and R 5 is an alkyl group having 12 to 18 carbon atoms; (3) 0 to about 15% by weight of a hydrophilic monomer; and (4) the balance of the copolymer comprising a copolymerizable hydrophobic monomer different from components (1) to (3), wherein the total amount of components (1) and (3) is not less than about 30% by weight.
Claim 2
Dependent Claim
173 words
A synthetic paper comprising a paper-like synthetic resin film or sheet having coated on at least one surface thereof an N-ampho-ionized copolymer treated with a monohaloacetic acid salt, said copolymer comprising: (1) about 25 to about 35% by weight of a monomer represented by general formula (I): ##STR36## wherein R 1 is a hydrogen atom or a methyl group, R 2 is an alkylene group having 1 to 4 carbon atoms and R 3 and R 4 are each an alkyl group having 1 to 4 carbon atoms; (2) about 30 to about 45% by weight of a monomer represented by general formula (II): ##STR37## wherein R 1 is the same as defined above and R 5 is an alkyl group having 12 to 18 carbon atoms; (3) 0 to about 15% by weight of a hydrophilic monomer; and (4) the balance of the copolymer comprising a copolymerizable hydrophobic monomer different from components (1) to (3), wherein the total amount of components (1) and (3) is not less than about 30% by weight.
Claim 3
Dependent Claim
34 words
The synthetic paper as claimed in claim 1, wherein said monohaloacetic acid salt is selected from the group consisting of an alkali metal salt, an alkaline earth metal salt and an organic amine salt.
Claim 4
Dependent Claim
31 words
The synthetic paper as claimed in claim 1, wherein component (2) is selected from the group consisting of dodecyl methacrylate, tridecyl methacrylate, myristyl methacrylate, hexadecyl methacrylate, stearyl methacrylate and mixtures thereof.
Claim 5
Dependent Claim
22 words
The synthetic paper as claimed in claim 1, wherein R 2 in the monomer of general formula (I) is an ethylene group.
Claim 6
Dependent Claim
31 words
The synthetic paper as claimed in claim 4, wherein component (1) is selected from the group consisting of dimethylaminoethyl methacrylate, diethylaminoethyl methacrylate, diethylaminoethyl acrylate, dibutylaminoethyl methacrylate, dibutylaminopropyl methacrylate and mixtures thereof.
Claim 7
Dependent Claim
28 words
The synthetic paper as claimed in claim 1, wherein component (3) is a hydrophilic monomer having a solubility at 20° C of at least about 5% by weight.
Claim 8
Dependent Claim
49 words
The synthetic paper as claimed in claim 6, wherein component (3) is selected from the group consisting of hydroxyethyl methacrylate, hydroxyethyl acrylate, hydroxypropyl acrylate, N-vinyl pyrrolidone, acrylic acid, methacrylic acid, an alkali metal salt, an amine salt or an acid-amide of methacrylic acid or acrylic acid and mixtures thereof.
Claim 9
Dependent Claim
25 words
The synthetic paper as claimed in claim 1, wherein component (4) is a polymerizable hydrophobic vinyl monomer which is insoluble or sparingly soluble in water.
Claim 10
Dependent Claim
30 words
The synthetic paper as claimed in claim 8, wherein component (4) is selected from the group consisting of styrene, vinyl toluene, chlorostyrene, α-methylstyrene, 2-ethylhexyl methacrylate, cyclohexyl methacrylate and mixtures thereof.
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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) | 1981-05-22 | 1981-11-21 | 1982-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-05-22 | 1985-11-21 | 1986-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-05-22 | 1989-11-21 | 1990-05-23 | $7700.00 | Window Closed / Lapsed |