Patent US3261887A successfully refreshed from Google Patents.
US3261887A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transparent gum plastic composition containing methyl methacrylate resin and graft copolymer
Assignee: Uniroyal Inc
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Filing: 1958-02-14
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Granted: 1966-07-19
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Expires: 1978-02-14
Abstract
No abstract record available.
Inventors
- 👤 James U Mann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:15
CPC Classifications
C; C08; C08F; C08F279/00; C08F279/02; C08L; C08L25/00; C08L25/02; C08L25/04; C08L25/08; C08L25/14; C08L33/00; C08L33/04; C08L33/06; C08L33/10; C08L33/12; C08L51/00; C08L51/003; C08L51/04
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
190 words
A COMPOSITION WHICH IS A HARD, TOUGH MIXTURE, CHARACTERIZED BY THE TRANSMISSION OF AT LEAST 50% OF THE INCIDENT RADIATION OF ABOUT 7000 ANGSTROM UNITS WAVE LENGTH THROUGH A LAYER ONE-SIXTEENTH INCH THICK, COMPRISING A GRAFT POLYMER COMPONENT "G" AND A RESINOUS COMPONENT "R", IN WHICH THE RESINOUS COMPONENT "R" IS SELECTED FROM THE GROUP CONSISTING OF POLYMETHYL METHACRYLATE AND COPOLYMERS OF METHYL METHACRYLATE AND STYRENE CONTAINING AT LEAST 40% OF METHYL METHACRYLATE, AND IN WHICH THE GRAFT COPOLYMER "G" IS THE PRODUCT OF THE POLYMERIZATION OF A MONOMERIC COMPONENT "M"SELECTED FROM THE GROUP CONSISTING OF STYRENE, METHYL METHACRYLATE, AND BLENDS OF STYRENE AND METHYL METHACRYLATE IN A LATEX OF AN ELASTOMER "E" SELECTED FROM THE GROUP CONSISTING OF POLYBUTADIENE AND RUBBERY COPOLYMERS OF BUTADIENE WITH A MONO-OLEFINIC MONOMER COMTAINING UP TO 40% BY WEIGHT OF SAID MONO-OLEFINIC MONOMER; THE RATIO BY WEIGHT OF SAID MONOMERIC COMPONENT "M" TO SAID ELASTOMER "E" BEING WITHIN THE RANGE OF FROM 0.1:1 TO 2:1 BY WEIGHT; AND THE RELATIVE AMOUNTS OF "G" AND "R" IN SAID MIXTURE BEING SUCH THAT THE ELASTOMER "E" COMPRISES FROM 15% TO 35% BY WEIGHT OF SAID MIXTURE.
Claim 2
Dependent Claim
190 words
A COMPOSITION WHICH IS A HARD, TOUGH MIXTURE, CHARACTERIZED BY THE TRANSMISSION OF AT LEAST 50% OF THE INCIDENT RADIATION OF ABOUT 7000 ANGSTROM UNITS WAVE LENGTH THROUGH A LAYER ONE-SIXTEENTH INCH THICK, COMPRISING A GRAFT POLYMER COMPONENT "G" AND A RESINOUS COMPONENT "R", IN WHICH THE RESINOUS COMPONENT "R" IS SELECTED FROM THE GROUP CONSISTING OF POLYMETHYL METHACRYLATE AND COPOLYMERS OF METHYL METHACRYLATE AND STYRENE CONTAINING AT LEAST 40% OF METHYL METHACRYLATE, AND IN WHICH THE GRAFT COPOLYMER "G" IS THE PRODUCT OF THE POLYMERIZATION OF A MONOMERIC COMPONENT "M"SELECTED FROM THE GROUP CONSISTING OF STYRENE, METHYL METHACRYLATE, AND BLENDS OF STYRENE AND METHYL METHACRYLATE IN A LATEX OF AN ELASTOMER "E" SELECTED FROM THE GROUP CONSISTING OF POLYBUTADIENE AND RUBBERY COPOLYMERS OF BUTADIENE WITH A MONO-OLEFINIC MONOMER COMTAINING UP TO 40% BY WEIGHT OF SAID MONO-OLEFINIC MONOMER; THE RATIO BY WEIGHT OF SAID MONOMERIC COMPONENT "M" TO SAID ELASTOMER "E" BEING WITHIN THE RANGE OF FROM 0.1:1 TO 2:1 BY WEIGHT; AND THE RELATIVE AMOUNTS OF "G" AND "R" IN SAID MIXTURE BEING SUCH THAT THE ELASTOMER "E" COMPRISES FROM 15% TO 35% BY WEIGHT OF SAID MIXTURE.
Claim 3
Dependent Claim
37 words
A COMPOSITION OBTAINED BY POLYMERIZING A POLYMERIZABLE MIXTURE CONSISTING OF 33 TO 100 PARTS BY WEIGHT OF A POLYMERIZABLE MATERIAL CONSISTING OF METHYL METHACRYLATE WHILE IN INTIMATE CONTACT WITH 100 PARTS BY WEIGHT OF A BUTADIENE HOMOPOLYMER.
Claim 4
Dependent Claim
37 words
A COMPOSITION OBTAINED BY POLYMERIZING A POLYMERIZABLE MIXTURE CONSISTING OF 33 TO 100 PARTS BY WEIGHT OF A POLYMERIZABLE MATERIAL CONSISTING OF METHYL METHACRYLATE WHILE IN INTIMATE CONTACT WITH 100 PARTS BY WEIGHT OF A BUTADIENE HOMOPOLYMER.
Claim 5
Dependent Claim
46 words
A COMPOSITION OBTAINED BY POLYMERIZING 33 TO 100 PARTS BY WEIGHT OF A POLYMERIZABLE MIXTURE CONSISTING OF METHYL METHACRYLATE AND STYRENE WHILE IN INTIMATE CONTACT WITH 100 PARTS BY WEIGHT OF A BUTADIENE HOMOPOLYMER SAID POLYMERIZABLE MIXTURE CONTAINING AT LEAST 50% BY WEIGHT OF METHYL METHACRYLATE.
Claim 6
Dependent Claim
46 words
A COMPOSITION OBTAINED BY POLYMERIZING 33 TO 100 PARTS BY WEIGHT OF A POLYMERIZABLE MIXTURE CONSISTING OF METHYL METHACRYLATE AND STYRENE WHILE IN INTIMATE CONTACT WITH 100 PARTS BY WEIGHT OF A BUTADIENE HOMOPOLYMER SAID POLYMERIZABLE MIXTURE CONTAINING AT LEAST 50% BY WEIGHT OF METHYL METHACRYLATE.
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) | 1969-07-18 | 1970-01-17 | 1970-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-18 | 1974-01-17 | 1974-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-18 | 1978-01-17 | 1978-07-19 | $7700.00 | Window Closed / Lapsed |