US3857768A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for radiation cross-linking polymethyl acrylate-methyl acrylate compositions
Assignee: Ube Corp
•
Filing: 1972-11-15
•
Granted: 1974-12-31
•
Expires: 1992-11-15
Abstract
Abstract A monomer, necessarily containing methyl acrylate, is dissolved in or swelled with polymethyl acrylate to produce resin compositions that is capable of readily cross-linking under irradiation of ionizing radiation or ultraviolet rays. They are useful for making, among others, coatings, adhesives, and resin formers.
Inventors
- 👤 K Tsuneta
- 👤 H Mihara
- 👤 T Kagiya
- 👤 H Mitsui
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:54
CPC Classifications
C; C08; C08F; C08F265/00; C08F265/04; C08F265/06; C08F291/00
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
48 words
A PROCESS OF PREPARING A CROSS-LINKED RESIN COMPOSITION WHICH COMPRISES IRRADIATING WITH IONIZING RADIATION A CROSSLINKABLE COMPOSITION CONSISTING ESSENTL3IALY OF METHYL ACRYLATE MONOMER AND POLYMETHYL ACRYLATE AND BEING DEVOID OF A CATALSYT OR CROSS-LINKING AGENT, SAID POLYMETHYL ACRYLATE CONSTITUTING AT LEAST 0.5 PERCENT BY WEIGHT OF THE COMPOSITION.
Claim 2
Dependent Claim
48 words
A PROCESS OF PREPARING A CROSS-LINKED RESIN COMPOSITION WHICH COMPRISES IRRADIATING WITH IONIZING RADIATION A CROSSLINKABLE COMPOSITION CONSISTING ESSENTL3IALY OF METHYL ACRYLATE MONOMER AND POLYMETHYL ACRYLATE AND BEING DEVOID OF A CATALSYT OR CROSS-LINKING AGENT, SAID POLYMETHYL ACRYLATE CONSTITUTING AT LEAST 0.5 PERCENT BY WEIGHT OF THE COMPOSITION.
Claim 3
Dependent Claim
30 words
A process as claimed in claim 1, wherein the source for the ionizing radiation is radiation from electron beam, neutron beam, alpha rays, gamma-rays, X-rays, proton beam or deuteron beam.
Claim 4
Dependent Claim
26 words
A process as claimed in claim 1, wherein said cross-linkable composition is irradiated with ultraviolet rays having electromagnetic waves of from 100 to 4,000 Angstrom units.
Claim 5
Dependent Claim
25 words
A process as claimed in claim 1, wherein the composition contains polymethyl acrylate in an amount of between about 0.5 to 50 percent by weight.
Claim 6
Dependent Claim
99 words
A PROCESS OF PREPARING A CROSS-LINKED RESIN COMPOSITION WHICH COMPRISES IRRADIATING WTIH IONIZING RADIATION A CROSSLINKABLE COMPOSITION CONSISTION ESSENTUAL IALLY OF A MONOMERIC COMPONENT AND A POLYMERIC COMPONENT SAID MONOMERIC COMPONENT CONSISTING ESSENTIALLY OF METHYL ACRYLATE AND A VINYL MONOMER SELECTED FROM THE GROUP CONSISTING OF VINYL ACETATE, ETHYL ACRYLATE, ALKYL METHACRYLATE, ACRYLONITRILE AND MIXTURES THEREOF, SAID POLYMERIC COMPONENT ESSENTIALLY CONSISTING OF METHYACRYLATE COPOLYMER CONTAINING AT LEAST 1 MOLE PER CENT OF METHYL ACRYLATE UNITS, SAID POLYMERIC COMPONENT CONSTITUTION AT LEAST 0.5 PERCENT BY WEIGHT OF THE COMPOSITION SAID CROSS-LINKABLE COMPOSITION BEING DEVOID OF A CATALYST OR CROSS-LINKING AGENT.
Claim 7
Dependent Claim
99 words
A PROCESS OF PREPARING A CROSS-LINKED RESIN COMPOSITION WHICH COMPRISES IRRADIATING WTIH IONIZING RADIATION A CROSSLINKABLE COMPOSITION CONSISTION ESSENTUAL IALLY OF A MONOMERIC COMPONENT AND A POLYMERIC COMPONENT SAID MONOMERIC COMPONENT CONSISTING ESSENTIALLY OF METHYL ACRYLATE AND A VINYL MONOMER SELECTED FROM THE GROUP CONSISTING OF VINYL ACETATE, ETHYL ACRYLATE, ALKYL METHACRYLATE, ACRYLONITRILE AND MIXTURES THEREOF, SAID POLYMERIC COMPONENT ESSENTIALLY CONSISTING OF METHYACRYLATE COPOLYMER CONTAINING AT LEAST 1 MOLE PER CENT OF METHYL ACRYLATE UNITS, SAID POLYMERIC COMPONENT CONSTITUTION AT LEAST 0.5 PERCENT BY WEIGHT OF THE COMPOSITION SAID CROSS-LINKABLE COMPOSITION BEING DEVOID OF A CATALYST OR CROSS-LINKING AGENT.
Claim 8
Dependent Claim
28 words
A process as claimed in claim 5, wherein the source for the ionizing radiation is radiation from electron beam, neutron beam, alpha-rays, gamma-rays, proton beam or deuteron beam.
Claim 9
Dependent Claim
22 words
A process as claimed in claim 5, wherein the ionizing radiation is applied at a dose of from 103 to 108 roentgens.
Claim 10
Dependent Claim
26 words
A process as claimed in Claim 5, wherein said cross-linkable composition is irradiated with ultraviolet rays having electromagnetic waves of from 100 to 4,000 Angstrom units.
Claim 11
Dependent Claim
23 words
A process as claimed in claim 5, wherein said polymeric component constitutes between about 0.5 - 50 percent by weight of the composition.
Claim 12
Dependent Claim
21 words
A process as claimed in claim 5, wherein said polymeric component contains at least 10 mole percent of methyl acrylate units.
Claim 13
Dependent Claim
22 words
A process as claimed in claim 5, wherein the ionizing radiation is applied at a dose of from 104 to 107 roentgens.
Claim 14
Dependent Claim
22 words
A process as claimed in claim 1, wherein the ionizing radiation is applied at a dose of from 104 to 107 roentgens.
Claim 15
Dependent Claim
67 words
A process of preparing a cross-linked resin composition which comprises irradiating with ionizing radiation a cross-linkable composition consisting essentially of methyl acrylate monomer and polymethyl acrylate and being devoid of a catalyst or cross-linking agent, said polymethyl acrylate constituting between about 13-50 percent by weight of the composition, said irradiation being carried out at a dose rate and a dose at which the desired cross-linking takes place.
Claim 16
Dependent Claim
67 words
A process of preparing a cross-linked resin composition which comprises irradiating with ionizing radiation a cross-linkable composition consisting essentially of methyl acrylate monomer and polymethyl acrylate and being devoid of a catalyst or cross-linking agent, said polymethyl acrylate constituting between about 13-50 percent by weight of the composition, said irradiation being carried out at a dose rate and a dose at which the desired cross-linking takes place.
References Cited (Backward Citations)
US2413973A
Cited
US2921006A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-12-30 | 1978-07-01 | 1978-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-30 | 1982-07-01 | 1982-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-30 | 1986-07-01 | 1986-12-31 | $7700.00 | Window Closed / Lapsed |