Patent US4259456A successfully refreshed from Google Patents.
US4259456A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Odorless polyolefin resin compositions
Assignee: Lion Corp
•
Filing: 1979-04-02
•
Granted: 1981-03-31
•
Expires: 1999-04-02
Abstract
Abstract An improved odorless polyolefin resin composition is proposed which is free from the problem of the generation of unpleasant odors unavoidable in the conventional polyolefin resin compositions filled with an inorganic filler due to the oxidative degradation of the ingredients. The deodorant effect in the inventive compositions is obtained by formulating limited amounts of a secondary alkane sulfonate having 12 to 20 carbon atoms per molecule and an organic nitrogen compound having at least one skeletal structure expressed by the formula ##STR1## in a molecule as exemplified by melamine and the like into a polyolefin resin-inorganic filler blend.
Inventors
- 👤 Hisashi Yamada
- 👤 Kazuo Hayakawa
- 👤 Masayuki Makise
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 01:45
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/34; C08K5/3442; C08K5/29; C08K5/36; C08K5/41; C08K5/42
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
92 words
An odorless polyolefin resin composition which comprises (a) from 0.01 to 2 parts by weight of a secondary alkane sulfonate alkali metal salt having from 12 to 20 carbon atoms per alkyl group and (b) from 0.01 to 1 part by weight of an organic nitrogen compound having at least one skeletal structure expressed by the formula ##STR5## in a molecule, per 100 parts by weight of a blend composed of from 20 to 95% by weight of a polyolefin resin and from 80 to 5% by weight of an inorganic filler.
Claim 2
Dependent Claim
92 words
An odorless polyolefin resin composition which comprises (a) from 0.01 to 2 parts by weight of a secondary alkane sulfonate alkali metal salt having from 12 to 20 carbon atoms per alkyl group and (b) from 0.01 to 1 part by weight of an organic nitrogen compound having at least one skeletal structure expressed by the formula ##STR5## in a molecule, per 100 parts by weight of a blend composed of from 20 to 95% by weight of a polyolefin resin and from 80 to 5% by weight of an inorganic filler.
Claim 3
Dependent Claim
16 words
The polyolefin resin composition as claimed in claim 1 wherein the organic nitrogen compound is melamine.
References Cited (Backward Citations)
US2956982A
Cited
US3503843A
Cited
US3644310A
Cited
US3714114A
Cited
US3668179A
Cited
US4080359A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-03-30 | 1984-09-29 | 1985-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-03-30 | 1988-09-29 | 1989-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-03-30 | 1992-09-29 | 1993-03-31 | $7700.00 | Window Closed / Lapsed |