US4338411A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Modified resins
Assignee: Advanced Elastomer Systems LP
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Filing: 1981-02-26
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Granted: 1982-07-06
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Expires: 2001-02-26
Abstract
Abstract Improved carboxy containing ethylene polymer resins are described which are obtained by reaction with dimethylol phenolic compound.
Inventors
- 👤 Aubert Y. Coran
- 👤 Raman Patel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:31
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/13
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
54 words
A thermoplastic modified ionomer resin prepared by reaction of an ionic copolymer of ethylene and ethenically unsaturated mono- or dicarboxylic acid of 3-8 carbon atoms in which the acid groups of copolymer are neutralized with metal ions with 0.2-20 parts by weight of dimethylol phenolic compound per 100 parts by weight of said resin.
Claim 2
Dependent Claim
54 words
A thermoplastic modified ionomer resin prepared by reaction of an ionic copolymer of ethylene and ethenically unsaturated mono- or dicarboxylic acid of 3-8 carbon atoms in which the acid groups of copolymer are neutralized with metal ions with 0.2-20 parts by weight of dimethylol phenolic compound per 100 parts by weight of said resin.
Claim 3
Dependent Claim
29 words
The modified ionomer resin of claim 1 in which the amount of dimethylol phenolic compound is 0.5-10 parts by weight of said resin which modified ionomer resin is thermoplastic.
Claim 4
Dependent Claim
35 words
The modified ionomer resin of claim 2 in which the ionomer resin is derived from a copolymer of at least 50 mole percent of ethylene and about 1 to 20 weight percent of methacrylic acid.
Claim 5
Dependent Claim
14 words
The modified ionomer resin of claim 3 in which the phenolic compound is dimethylol-p-octylphenol.
Claim 6
Dependent Claim
14 words
The modified ionomer resin of claim 4 in which the metal ion is zinc.
Claim 7
Dependent Claim
26 words
The modified ionomer resin of claim 2, which exhibits at least a 50% reduction in percent creep at 100° C. compared to the unmodified ionomer resin.
Claim 8
Dependent Claim
26 words
The modified ionomer resin of claim 5, which exhibits at least a 50% reduction in percent creep at 100° C. compared to the unmodified ionomer resin.
Claim 9
Dependent Claim
14 words
The modified ionomer resin of claim 4 in which the metal ion is sodium.
References Cited (Backward Citations)
GB872267A
Cited
US3264272A
Cited
US3211804A
Cited
US3322734A
Cited
US3454676A
Cited
US3909463A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-07-05 | 1986-01-04 | 1986-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-07-05 | 1990-01-04 | 1990-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-07-05 | 1994-01-04 | 1994-07-06 | $7700.00 | Window Closed / Lapsed |