Patent US5442006A successfully refreshed from Google Patents.
Patent US4911974A successfully refreshed from Google Patents.
US4911974A
Expired / Lapsed
US
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Tack-free silicone gel moldings
Assignee: DuPont Toray Specialty Materials KK
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Filing: 1988-07-05
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Granted: 1990-03-27
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Expires: 2008-07-05
Abstract
Abstract Tack-free silicone gel moldings and methods of making such moldings are prepared by coating tacky silicone gel moldings with a silicone rubber particles, having an average diameter less than about 1 mm.
Inventors
- 👤 Koji Shimizu
- 👤 Mitsuo Hamada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:01
CPC Classifications
C; C08; C08J; C08J7/00; C08J7/04; C08J7/06; C08J7/0427; C08J7/043; C08J7/046; C08J2383/00; C08J2383/04; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24355; Y10T428/24372; Y10T428/2438; Y10T428/24388; Y10T428/24802; Y10T428/24893; Y10T428/25; Y10T428/254; Y10T428/259; Y10T428/29; Y10T428/2982; Y10T428/2991; Y10T428/2993; Y10T428/2995; Y10T428/2998; Y10T428/31504; Y10T428/31652; Y10T428/31663
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
53 words
A tack-free silicone gel molding comprising a molding formed principally of a crosslinked organopolysiloxane having a partial three-dimensional network structure and exhibiting limited fluidity and deformation upon application of stress which is coated with a particulate having an average diameter less than about 1 mm, wherein said particulate comprises cured silicone rubber particles.
Claim 2
Dependent Claim
53 words
A tack-free silicone gel molding comprising a molding formed principally of a crosslinked organopolysiloxane having a partial three-dimensional network structure and exhibiting limited fluidity and deformation upon application of stress which is coated with a particulate having an average diameter less than about 1 mm, wherein said particulate comprises cured silicone rubber particles.
Claim 3
Dependent Claim
15 words
A tack-free silicone gel molding as claimed in claim 1 wherein said molding is spherical.
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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) | 1993-03-26 | 1993-09-25 | 1994-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-03-26 | 1997-09-25 | 1998-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-03-26 | 2001-09-25 | 2002-03-27 | $7700.00 | Window Closed / Lapsed |