Patent US4370189A successfully refreshed from Google Patents.
US4370189A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Modifying thermoplastic materials and products thereof
Assignee: Phillips Petroleum Co
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Filing: 1980-12-16
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Granted: 1983-01-25
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Expires: 2000-12-16
Abstract
Abstract In accordance with the present invention, at least two sheets of a thermoplastic polyalkene are bonded to one another to form a bonded product and at least one surface of a polyalkene is formed on at least a part of a synthetic nonhydrogenated, unvulcanized elastomeric product to form a bonded product by disposing the sheets of polyalkene or at least one sheet of polyalkene on the synthetic elastomeric product, as the case may be, in a mold, closing the mold and subjecting the assembly to microwave energy at a power level, for a time and while applying a pressure sufficient to bond the two polyalkene sheets or the polyalkene sheet to the synthetic elastomeric material, as the case may be.
Inventors
- 👤 Roy W. Siedenstrang
- 👤 Agmund K. Thorsrud
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:15
CPC Classifications
B; B32; B32B; B32B37/00; B29; B29C; B29C35/00; B29C35/02; B29C35/08; B32B37/06; C; C08; C08J; C08J5/00; C08J5/12; C08J5/121; B29C35/0805; B29C2035/0855; B29K; B29K2021/00; B29K2023/00; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31826; Y10T428/31833; Y10T428/31855; Y10T428/31909; Y10T428/31913; Y10T428/31917
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
98 words
A method for forming a thermoplastic polyalkene surface on at least one side of a thermoplastic elastomeric product comprising: disposing a sheet of a thermoplastic polyalkene in a mold; disposing a body of a nonhydrogenated, unvulcanized and unvulcanizable, thermoplastic elastomeric material atop at least a portion of said sheet of polyalkene; closing said mold; and subjecting the resultant assembly to microwave energy at a power level, for a time and while applying a pressure sufficient to bond said sheet of polyalkene to said body of elastomeric material and form said body of elastomeric material into an elastomeric product.
Claim 2
Independent Claim
98 words
A method for forming a thermoplastic polyalkene surface on at least one side of a thermoplastic elastomeric product comprising: disposing a sheet of a thermoplastic polyalkene in a mold; disposing a body of a nonhydrogenated, unvulcanized and unvulcanizable, thermoplastic elastomeric material atop at least a portion of said sheet of polyalkene; closing said mold; and subjecting the resultant assembly to microwave energy at a power level, for a time and while applying a pressure sufficient to bond said sheet of polyalkene to said body of elastomeric material and form said body of elastomeric material into an elastomeric product.
Claim 3
Dependent Claim
25 words
A method in accordance with claim 1 wherein a second sheet of a thermoplastic polyalkene is disposed on top of the body of elastomeric material.
Claim 4
Dependent Claim
42 words
A method in accordance with claim 1 or 2 in which the sheet or polyalkene or at least one of the sheets of polyalkene, as the case may be, extends beyond the periphery of the body of elastomeric material on all sides.
Claim 5
Dependent Claim
38 words
A method in accordance with claim 3 wherein the mold has a cavity formed therein having the dimensions and the form of the final elastomeric product and the body of thermoplastic elastomeric material is disposed in said cavity.
Claim 6
Dependent Claim
21 words
A method in accordance with claim 1 or 2 wherein the body of elastomeric material is a sheet of elastomeric material.
Claim 7
Dependent Claim
30 words
A method in accordance with claim 1 or 2 wherein the sheet or sheets of polyalkene, as the case may be, has a thickness of less than about 10 mils.
Claim 8
Dependent Claim
30 words
A method in accordance with claim 1 or 2 wherein the elastomeric material contains a microwave sensitizer in an amount sufficient to decrease the loss factor of the elastomeric material.
Claim 9
Dependent Claim
42 words
A method in accordance with claim 1 or 2 wherein the material from which the polyalkene sheet or sheets, as the case may be, is formed contains a microwave sensitizer in an amount sufficient to increase the loss factor of the polyalkene.
Claim 10
Dependent Claim
52 words
A method in accordance with claim 1 or 2 wherein the elastomeric material and the material from which the polyalkene sheet or sheets, as the case may be, are formed each contains a microwave sensitizer in an amount sufficient to increase the loss factor of said elastomeric material or said polyalkene, respectively.
Claim 11
Dependent Claim
18 words
A method in accordance with claim 1 or 2 wherein the mold is a formed of silicone rubber.
Claim 12
Dependent Claim
14 words
A method in accordance with claim 1 or 2 wherein the polyalkene is polyethylene.
Claim 13
Dependent Claim
14 words
A method in accordance with claim 1 or 2 wherein the polyalkene is polypropylene.
Claim 14
Dependent Claim
49 words
A method in accordance with claim 1 or 2 wherein the elastomeric material is a conjugated diene/vinyl arene block copolymer and the sheet or sheets of polyalkene, as the case may be, has an unmodified microwave energy loss factor and a a thickness of less than about 10 mils.
Claim 15
Dependent Claim
61 words
A method in accordance with claim 1 or 2 wherein the elastomeric material is a conjugated diene/vinyl arene block copolymer, the sheet or sheets of polyalkene, as the case may be, has a thickness of less than about 10 mils and the elastomeric material contains a microwave sensitizer in an amount sufficient to decrease the loss factor of the elastomeric material.
Claim 16
Dependent Claim
19 words
A method in accordance with claim 5 wherein the elastomeric product is in the form of a mat-type structure.
Claim 17
Dependent Claim
28 words
A method in accordance with claim 1 or 2 wherein the sheet or sheets of polyalkene, as the case may be, has an unmodified microwave energy loss factor.
Claim 18
Dependent Claim
20 words
A method in accordance with claim 1 or 2 wherein the elastomeric material is a conjugated diene/vinyl arene block copolymer.
Claim 19
Dependent Claim
26 words
A method in accordance with claim 17 wherein the sheet or sheets of polyalkene, as the case may be, has an unmodified microwave energy loss factor.
Claim 20
Dependent Claim
25 words
A method in accordance with claim 17 wherein the elastomeric material contains a microwave sensitizer in an amount sufficient to decrease the loss factor thereof.
Claim 21
Dependent Claim
28 words
A method in accordance with claim 17 wherein the sheet or sheets of polyalkene, as the case may be, have a thickness of less than about 10 mils.
Claim 22
Dependent Claim
12 words
A method in accordance with claim 17 wherein the polyalkene is polyethylene.
Claim 23
Dependent Claim
12 words
A method in accordance with claim 17 wherein the polyalkene is polypropylene.
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) | 1986-01-24 | 1986-07-26 | 1987-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-01-24 | 1990-07-26 | 1991-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-01-24 | 1994-07-26 | 1995-01-25 | $7700.00 | Window Closed / Lapsed |