US3361704A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for making matte surfaces
Assignee: WR Grace and Co
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Filing: 1965-09-10
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Granted: 1968-01-02
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Expires: 1985-09-10
Abstract
No abstract record available.
Inventors
- 👤 Calvin J Benning
- 👤 Christian B Lundsager
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:56
CPC Classifications
C; C08; C08L; C08L23/00; C08L23/02; C08L23/04; B; B29; B29C; B29C59/00; B29C59/16; B29C71/00; B29C71/02; B29D; B29D7/00; C08K; C08K3/00; C08K3/01; C08K3/013; B29C35/00; B29C35/02; B29C35/08; B29C35/0805; B29C2035/0822; B29K; B29K2023/00; B29K2023/04; B29K2023/06; B29K2105/00; B29K2105/0005; B29K2105/0038; B29K2105/06; B29K2105/16; B29K2995/00; B29K2995/0018; B29K2995/0024; B29L; B29L2007/00; B29L2007/008
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
A PROCESS FOR PREPARING MATTE SURFACES ON FILM PREPARED FROM HOMOGENEOUS BLENDS CONSISTING ESSENTIALLY OF ABOUT 10-50% POLY(ALPHA-OLEFINS) PREPARED FROM THE GROUP CONSISTING OF ETHYLENE AND MIXTURES OF ETHYLENE AND ALPHA-OLEFINS HAVING UP TO ABOUT 6 CARBON ATOMS, SAID POLY(ALPHA-OLEFINS) HAVING A HIGH LOAD MELT INDEX OF ABOUT 0-3 AND A DENSITY OF ABOUT 0.94-0.96 G. PER CC., ABOUT 30-80% INERT PARTICULATE FILLER, AND ABOUT 10-60% PLASTICIZER; SAID PROCESS CONSISTING OF HEATING SAID FILMS TO A TEMPERATURE BETWEEN ABOUT 45*C. AND A TEMPERATURE ABOUT 5*C. BELOW THE SOFTENING POINT OF THE POLY(ALPHAOLEFIN) POLYMER FOR ABOUT 5-90 MINUTES AND COOLING SAID FILM BELOW ABOUT 30*C., WHEREBY THE SURFACES OF THE AFORESAID FILM BECOME MATTE.
Claim 2
Dependent Claim
113 words
A PROCESS FOR PREPARING MATTE SURFACES ON FILM PREPARED FROM HOMOGENEOUS BLENDS CONSISTING ESSENTIALLY OF ABOUT 10-50% POLY(ALPHA-OLEFINS) PREPARED FROM THE GROUP CONSISTING OF ETHYLENE AND MIXTURES OF ETHYLENE AND ALPHA-OLEFINS HAVING UP TO ABOUT 6 CARBON ATOMS, SAID POLY(ALPHA-OLEFINS) HAVING A HIGH LOAD MELT INDEX OF ABOUT 0-3 AND A DENSITY OF ABOUT 0.94-0.96 G. PER CC., ABOUT 30-80% INERT PARTICULATE FILLER, AND ABOUT 10-60% PLASTICIZER; SAID PROCESS CONSISTING OF HEATING SAID FILMS TO A TEMPERATURE BETWEEN ABOUT 45*C. AND A TEMPERATURE ABOUT 5*C. BELOW THE SOFTENING POINT OF THE POLY(ALPHAOLEFIN) POLYMER FOR ABOUT 5-90 MINUTES AND COOLING SAID FILM BELOW ABOUT 30*C., WHEREBY THE SURFACES OF THE AFORESAID FILM BECOME MATTE.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-01-01 | 1971-07-03 | 1972-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-01 | 1975-07-03 | 1976-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-01 | 1979-07-03 | 1980-01-02 | $7700.00 | Window Closed / Lapsed |