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US4192930A
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Esterified olefin-maleic anhydride copolymers
Assignee: Akzona Inc
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Filing: 1978-06-15
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Granted: 1980-03-11
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Expires: 1998-06-15
Abstract
Abstract This invention relates to moldable thermoplastic compositions comprising a thermoplastic polymer admixed with a minor shaping processing improving amount of an esterified olefin-maleic anhydride copolymers formed from olefins having 2 to about 24 carbon atoms, where the esterifying alcohol is a monovalent alcohol having 2 to about 20 carbon atoms and where the ratio of maleic anhydride to esterifying alcohol is about 1:0.5 to about 1:2.
Inventors
- 👤 Heinz Beck
- 👤 Karl H. Frassek
- 👤 Werner Holtvoigt
- 👤 Ambar Mukerjee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 16:06
CPC Classifications
C; C08; C08F; C08F8/00; C08F8/14; B; B29; B29C; B29C33/00; B29C33/56; B29C33/60; B29C33/62
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
69 words
A moldable thermoplastic composition comprising: (a) A thermoplastic mold formable plastic, and (b) A minor shaping processing improving amount of an esterified olefin-maleic anhydride copolymer comprising a copolymer of an olefin containing 2 to about 24 carbon atoms and maleic anhydride, esterified with a monoualent alcohol containing 2 to about 20 carbon atoms, in a molar ratio of maleic anhydride to alcohol of from about 1:0.5 to about 1:2.
Claim 2
Dependent Claim
69 words
A moldable thermoplastic composition comprising: (a) A thermoplastic mold formable plastic, and (b) A minor shaping processing improving amount of an esterified olefin-maleic anhydride copolymer comprising a copolymer of an olefin containing 2 to about 24 carbon atoms and maleic anhydride, esterified with a monoualent alcohol containing 2 to about 20 carbon atoms, in a molar ratio of maleic anhydride to alcohol of from about 1:0.5 to about 1:2.
Claim 3
Dependent Claim
14 words
The composition, as in claim 1, wherein the alcohol is a branch chain alcohol.
Claim 4
Dependent Claim
17 words
The composition, as in claim 1, wherein the olefin contains about 8 to about 24 carbon atoms.
Claim 5
Dependent Claim
26 words
A composition as in claim 1, wherein the minor amount is between about 0.05 to about 0.5% by weight based on the weight of the plastic.
Claim 6
Dependent Claim
28 words
The composition, as in claims 1, 2, 3 or 4, wherein the copolymer prior to esterification has an average molecular weight of between about 2,000 and about 60,000.
Claim 7
Dependent Claim
24 words
The composition, as in claim 5, wherein the copolymer prior to esterification has an average molecular weight of between about 2,000 to about 15,000.
Claim 8
Dependent Claim
21 words
The composition, as in claim 6, wherein the molar ratio of maleic anhydride to alcohol is about 1:0.85 to about 1:2.0.
Claim 9
Dependent Claim
24 words
The composition as in claim 5, wherein the copolymer comprises maleic anhydride and olefins in a molar ratio of about 0.8:1 to about 1.8:1.
Claim 10
Dependent Claim
62 words
The composition as in claims 1, 2, 3 or 4, wherein the esterified olefin-maleic anhydride copolymer is employed in combination with at least one of the groups consisting of aliphatic hydrocarbons containing more than 12 carbon atoms, aromatic hydrocarbons, esters of fatty acids containing more than 7 carbon atoms, wax esters, wax alcohols or fatty alcohols containing more than seven carbon atoms.
Claim 11
Dependent Claim
17 words
The composition as in claim 9, wherein the esterified copolymer comprises 10% to 90% of the combination.
Claim 12
Dependent Claim
47 words
The composition as in claims 1, 2, 3 or 4, wherein the thermoplastic polymer is a vinyl resin, a polyolefin, a polyvinylidene chloride copolymer, polystyrene, a copolymer of styrene with acrylonitrile or methyl methacrylate, a polycarbonate, a nylon, an acrylic polymer, an ABS polymer, or a polyester.
Claim 13
Dependent Claim
15 words
The composition as in claims 1, 2, 3 or 4, wherein the plastic is polyvinylchloride.
Claim 14
Dependent Claim
78 words
In a method of shaping a thermoplastic mold formable polymer using heat and pressure the improvement comprising admixing the thermoplastic polymer with a minor shaping processing improving amount of an esterified olefin-maleic anhydride copolymer comprising a copolymer of an olefin containing 2 to about 24 carbon atoms and maleic anhydride, esterified with a monomualent alcohol containing 2 to about 20 carbon atoms, in a molar ratio of maleic anhydride to alcohol of from about 1:0.5 to about 1:2.
Claim 15
Dependent Claim
78 words
In a method of shaping a thermoplastic mold formable polymer using heat and pressure the improvement comprising admixing the thermoplastic polymer with a minor shaping processing improving amount of an esterified olefin-maleic anhydride copolymer comprising a copolymer of an olefin containing 2 to about 24 carbon atoms and maleic anhydride, esterified with a monomualent alcohol containing 2 to about 20 carbon atoms, in a molar ratio of maleic anhydride to alcohol of from about 1:0.5 to about 1:2.
Claim 16
Dependent Claim
36 words
The method, as in claim 13, wherein the olefin contains about 8 to about 24 carbon atoms and wherein the copolymer prior to esterification has an average molecular weight of between about 2,000 and about 60,000.
Claim 17
Dependent Claim
21 words
The method, as in claim 14, wherein the molar ratio of maleic anhydride to alcohol is about 1:0.85 to about 1:2.0.
Claim 18
Independent Claim
46 words
The method, as in claims 13, 14 or 15, wherein the thermoplastic polymer is a vinyl resin, a polyolefin, a polyvinylidene chloride copolymer, polystyrene, a copolymer of styrene with acrylonitrile or methyl methacrylate, a polycarbonate, a nylon, an acrylic polymer, an ABS polymer, or a polyester.
Claim 19
Independent Claim
15 words
The method as, in claims 13, 14 or 15, wherein the thermoplastic resin is polyvinylchloride.
Claim 20
Independent Claim
61 words
The method as in claims 13, 14 or 15, wherein the esterified olefin-maleic anhydride copolymer is employed in combination with at least one of the groups consisting of aliphatic hydrocarbons containing more than 12 carbon atoms, aromatic hydrocarbons, esters of fatty acids containing more than 7 carbon atoms, wax esters, wax alcohols or fatty alcohols containing more than seven carbon atoms.
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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) | 1983-03-11 | 1983-09-10 | 1984-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-03-11 | 1987-09-10 | 1988-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-03-11 | 1991-09-10 | 1992-03-11 | $7700.00 | Window Closed / Lapsed |