Patent US5280060A successfully refreshed from Google Patents.
US5280060A
Expired / Lapsed
US
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Thermoplastic resin composition containing a fluidity modifier
Assignee: Sumitomo Chemical Co Ltd
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Filing: 1992-11-30
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Granted: 1994-01-18
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Expires: 2012-11-30
Abstract
Abstract A thermoplastic resin composition comprises: 100 parts by weight of at least one polyamide resin, and 0.01 to 20 parts by weight of at least one fluidity modifier selected from the group consisting of: Succinic anhydride, hexamethylenetetramine and 1,12-diaminododecane.
Inventors
- 👤 Hiroomi Abe
- 👤 Takeshi Fujii
- 👤 Kiyoshi Mitsui
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:05
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/17; C08K5/04; C08K5/09; C08K5/21
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
48 words
A thermoplastic resin composition consisting essentially of: 100 parts by weight of at least one polyamide resin selected from the group consisting of: poly-ε-caprolactam, and polyhexamethyleneadipamide, and 0.01 to 20 parts by weight of at least one fluidity modifier selected from the group consisting of: hexamethylenetetramine, and 1,12-diaminododecane.
Claim 2
Dependent Claim
48 words
A thermoplastic resin composition consisting essentially of: 100 parts by weight of at least one polyamide resin selected from the group consisting of: poly-ε-caprolactam, and polyhexamethyleneadipamide, and 0.01 to 20 parts by weight of at least one fluidity modifier selected from the group consisting of: hexamethylenetetramine, and 1,12-diaminododecane.
Claim 3
Independent Claim
58 words
A method for improving the fluidity of polyamide resin compositions to facilitate their molding which comprises adding to 100 parts by weight of at least one polyamide resin selected from the group consisting of: poly-ε-caprolactam and polyhexamethyleneadipamide, 0.01 to 20 parts by weight of at least one fluidity modifier selected from the group consisting of: hexamethylenetetramine, and 1,12-diaminododecane.
Claim 4
Independent Claim
58 words
A method for improving the fluidity of polyamide resin compositions to facilitate their molding which comprises adding to 100 parts by weight of at least one polyamide resin selected from the group consisting of: poly-ε-caprolactam and polyhexamethyleneadipamide, 0.01 to 20 parts by weight of at least one fluidity modifier selected from the group consisting of: hexamethylenetetramine, and 1,12-diaminododecane.
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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) | 1997-01-17 | 1997-07-19 | 1998-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-01-17 | 2001-07-19 | 2002-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-01-17 | 2005-07-19 | 2006-01-18 | $7700.00 | Window Closed / Lapsed |