Patent US5145606A successfully refreshed from Google Patents.
US5145606A
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Blowing compositions
Assignee: Daikin Industries Ltd
•
Filing: 1991-06-17
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Granted: 1992-09-08
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Expires: 2011-06-17
Abstract
Abstract The present invention provides blowing compositions for preparing foamed or expanded products of thermoplastics. Each of the blowing compositions comprises a combination of two of halogenated hydrocarbons.
Inventors
- 👤 Yukio Omure
- 👤 Keisuke Kitano
- 👤 Naoyoshi Hanatani
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:38
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/04; C08J9/12; C08J9/14; C08J9/143; C08J9/144; Y; Y10; Y10S; Y10S521/00; Y10S521/91
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
25 words
A blowing composition for producing foam of thermoplastics which comprises about 80 to about 20% of difluoroethane and about 20 to about 80% of chlorodifluoromethane.
Claim 2
Dependent Claim
25 words
A blowing composition for producing foam of thermoplastics which comprises about 80 to about 20% of difluoroethane and about 20 to about 80% of chlorodifluoromethane.
Claim 3
Dependent Claim
24 words
A blowing composition according to claim 1 which comprises about 60 to about 20% of difluoroethane and about 40 to about 80% of chlorodifluoromethane.
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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) | 1995-09-08 | 1996-03-09 | 1996-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-09-08 | 2000-03-09 | 2000-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-09-08 | 2004-03-09 | 2004-09-08 | $7700.00 | Window Closed / Lapsed |