US3227777A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vulcanizing ethylene-propylene copolymers with an alkenylpolysiloxane and a bis(aralkyl)peroxide
Assignee: General Electric Co
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Filing: 1963-01-24
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Granted: 1966-01-04
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Expires: 1983-01-24
Abstract
No abstract record available.
Inventors
- 👤 Moyer M Safford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:00
CPC Classifications
C; C08; C08L; C08L23/00; C08L23/02; C08L23/16; C08K; C08K3/00; C08K3/01; C08K3/013; C08K3/02; C08K3/04; C08K3/18; C08K3/24; C08K3/26; C08K3/34; C08K3/36; C08K5/00; C08K5/04; C08K5/14; C08L83/00; C08L83/04; C08L2312/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
155 words
A HEAT VULCANIZABLE COMPOSITION COMPRISING (1) A SOLID COPOLYMER OF ETHYLENE AND PROPYLENE, (2) AN ALKENYLPOLYSILOXANE HAVING THE FORMULA (CH2=CH-(CH2)X-)A(R-)B-SI-O((4-(A+B))/2) THE SAID ALKENYLPOLYSILOXANE COMPRISING A MINOR PROPORTION OF THE TOTAL WEIGHT OF (1) AND (2), AND (3) FROM 0.01 TO 10%, BY WEIGHT, BASED ON THE WEIGHT OF (1), TO AN ORGANIC PEROXIDE CURING AGENT CORRESPONDING TO THE GENERAL FORMULA R1-C(-R2)(-R3)-O-O-C(-R4)(-R5)-R6 WHERE R IS A MONOVALENT ORGANIC RADICAL FREE OF ALIPHATIC UNSATURATION SELECTED FROM THE CLASS CONSISTING OF ALKYL, ARYL, ARALKYL, ALKARYL, AND HALOGENATED ARYL RADICALS, R1 AND R6 ARE ARYL RADCIALS, R2, R3, R4, AND R5 ARE MEMBERS SELECTED FROM THE CLASS CONSISTING OF HYDROGEN AND ALKYL RADICALS OF LESS THAN FOUR CARBON ATOMS, X IS A WHOLE NUMBER EQUAL TO FROM 0 TO 1, INCLUSIVE, A IS A VALUE FROM 0.05 TO 1.5, B IS VALUE FROM 0.75 TO 2.5, AND THE SUM OF A+B IS EQUAL TO FROM 1.5 TO 3, INCLUSIVE.
Claim 2
Dependent Claim
155 words
A HEAT VULCANIZABLE COMPOSITION COMPRISING (1) A SOLID COPOLYMER OF ETHYLENE AND PROPYLENE, (2) AN ALKENYLPOLYSILOXANE HAVING THE FORMULA (CH2=CH-(CH2)X-)A(R-)B-SI-O((4-(A+B))/2) THE SAID ALKENYLPOLYSILOXANE COMPRISING A MINOR PROPORTION OF THE TOTAL WEIGHT OF (1) AND (2), AND (3) FROM 0.01 TO 10%, BY WEIGHT, BASED ON THE WEIGHT OF (1), TO AN ORGANIC PEROXIDE CURING AGENT CORRESPONDING TO THE GENERAL FORMULA R1-C(-R2)(-R3)-O-O-C(-R4)(-R5)-R6 WHERE R IS A MONOVALENT ORGANIC RADICAL FREE OF ALIPHATIC UNSATURATION SELECTED FROM THE CLASS CONSISTING OF ALKYL, ARYL, ARALKYL, ALKARYL, AND HALOGENATED ARYL RADICALS, R1 AND R6 ARE ARYL RADCIALS, R2, R3, R4, AND R5 ARE MEMBERS SELECTED FROM THE CLASS CONSISTING OF HYDROGEN AND ALKYL RADICALS OF LESS THAN FOUR CARBON ATOMS, X IS A WHOLE NUMBER EQUAL TO FROM 0 TO 1, INCLUSIVE, A IS A VALUE FROM 0.05 TO 1.5, B IS VALUE FROM 0.75 TO 2.5, AND THE SUM OF A+B IS EQUAL TO FROM 1.5 TO 3, INCLUSIVE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-03 | 1969-07-05 | 1970-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-03 | 1973-07-05 | 1974-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-03 | 1977-07-05 | 1978-01-04 | $7700.00 | Window Closed / Lapsed |