Patent US4494304A successfully refreshed from Google Patents.
Patent US4234636A successfully refreshed from Google Patents.
US4234636A
Expired / Lapsed
US
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Thermoplastic elastomeric composition, product and method of manufacture
Assignee: Phillips Petroleum Co
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Filing: 1978-12-28
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Granted: 1980-11-18
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Expires: 1998-12-28
Abstract
Abstract An unvulcanized, moldable composition comprising 100 parts by weight of a thermoplastic elastomer, at least about 10 parts by weight of an extender oil per 100 parts by weight of the thermoplastic elastomer and at least about 20 parts by weight of a solid, hygroscopic filler, having greater than 1 percent by weight of absorbed water and capable of retaining a substantial portion of such water at temperatures of at least 100° C., per 100 parts by weight of the thermoplastic elastomer, the ratio of the oil to the hygroscopic filler being from about 0.3 to about 3. A method of flow molding by exposure to microwave energy while applying pressures below about 200 psi and a molded article of manufacture are also described.
Inventors
- 👤 Agmund K. Thorsrud
- 👤 Roy W. Siedenstrang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:04
CPC Classifications
C; C08; C08L; C08L53/00; C08L53/02; C08K; C08K3/00; C08K3/01; C08K3/013; C08L25/00; C08L25/02; C08L25/04; C08L25/08; Y; Y10; Y10T; Y10T428/00; Y10T428/23907; Y10T428/23979; Y10T442/00; Y10T442/20; Y10T442/2861; Y10T442/2885
Claims Analysis
Total Claims: 59
Claim 1
Independent Claim
113 words
An unvulcanized, pressure and heat moldable composition comprising: 100 parts by weight of a thermoplastic elastomer; at least about 10 parts by weight of an extender oil per 100 parts by weight of said thermoplastic elastomer; and at least about 20 parts by weight of at least one solid, hygroscopic filler, having greater than 1 percent by weight of absorbed water and being capable of retaining a substantial portion of said absorbed water at a temperature above 100° C. and utilized in the preparation of said composition, per 100 parts by weight of said thermoplastic elastomer; the ratio of said extender oil to said hygroscopic filler being from about 0.3 to about 3.
Claim 2
Dependent Claim
113 words
An unvulcanized, pressure and heat moldable composition comprising: 100 parts by weight of a thermoplastic elastomer; at least about 10 parts by weight of an extender oil per 100 parts by weight of said thermoplastic elastomer; and at least about 20 parts by weight of at least one solid, hygroscopic filler, having greater than 1 percent by weight of absorbed water and being capable of retaining a substantial portion of said absorbed water at a temperature above 100° C. and utilized in the preparation of said composition, per 100 parts by weight of said thermoplastic elastomer; the ratio of said extender oil to said hygroscopic filler being from about 0.3 to about 3.
Claim 3
Dependent Claim
18 words
A composition in accordance with claim 1 wherein the thermoplastic elastomer is a conjugated diene/vinyl aromatic block copolymer.
Claim 4
Dependent Claim
24 words
A composition in accordance with claim 2 wherein the block copolymer is selected from the group consisting of linear block and radial teleblock copolymers.
Claim 5
Dependent Claim
15 words
A composition in accordance with claim 3 wherein the copolymer is a radial teleblock copolymer.
Claim 6
Dependent Claim
27 words
A composition in accordance with claim 1 wherein the thermoplastic elastomer is a butadiene/styrene block copolymer having a butadiene/styrene weight ratio between about 85/15 to about 45/55.
Claim 7
Dependent Claim
32 words
A composition in accordance with claim 1 wherein the composition contains up to about 150 parts by weight of a solid resinous polymer per 100 parts by weight of the thermoplastic elastomer.
Claim 8
Dependent Claim
34 words
A composition in accordance with claim 6 wherein the solid resinous polymer is selected from the group consisting of homopolymers of a vinyl-substituted aromatic compound and copolymers of said compound with a copolymerizable compound.
Claim 9
Dependent Claim
25 words
A composition in accordance with claim 7 wherein the copolymerizable compound is a compound selected from the group consisting of acrylonitrile and a conjugated diene.
Claim 10
Dependent Claim
17 words
A composition in accordance with claim 1 wherein the thermoplastic elastomer is an oil-extended butadiene/styrene block copolymer.
Claim 11
Dependent Claim
41 words
A composition in accordance with claim 1 wherein the composition contains a polar agent in an amount sufficient to significantly increase the microwave energy absorptivity of said composition and to render said composition moldable at pressures less than about 200 psi.
Claim 12
Dependent Claim
25 words
A composition in accordance with claim 10 wherein the composition contains an ethylene/vinyl acetate copolymer in an amount sufficient to significantly reduce the molding time.
Claim 13
Dependent Claim
32 words
A composition in accordance with claim 10 wherein the polar compound is present in an amount sufficient to produce a composition having a molding time between about one second and sixty seconds.
Claim 14
Dependent Claim
71 words
A composition in accordance with claim 1 wherein the extender oil is present in an amount between about 250 to about 350 parts by weight per 100 parts by weight of the thermoplastic elastomer, the hygroscopic filler is present in an amount between about 350 to about 500 parts by weight per 100 parts by weight of said thermoplastic elastomer and the oil/filler ratio is between about 0.5 and about 1.0.
Claim 15
Dependent Claim
35 words
A composition in accordance with claim 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 or 13 wherein the hygroscopic filler has greater than about 4.0 percent by weight of absorbed water.
Claim 16
Dependent Claim
51 words
A composition in accordance with claim 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 or 13 wherein the hygroscopic filler is capable of retaining a substantial portion of the absorbed water at a temperature up to the temperature to be utilized in the molding of said composition.
Claim 17
Dependent Claim
27 words
A composition in accordance with claim 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 or 13 wherein the hygroscopic filler is bentonite clay.
Claim 18
Dependent Claim
27 words
A composition in accordance with claim 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 or 13 wherein the hygroscopic filler is wood flour.
Claim 19
Dependent Claim
27 words
A composition in accordance with claim 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 or 13 wherein the hygroscopic filler is ground cork.
Claim 20
Independent Claim
164 words
A method of flow molding a thermoplastic elastomer composition comprising: forming a mixture comprising: 100 parts by weight of a thermoplastic elastomer; at least about 10 parts by weight of an extender oil per 100 parts by weight of the said thermoplastic elastomer; and at least about 20 parts by weight of at least one solid, hygroscopic filler, having greater than 1 percent by weight of absorbed water and being capable of retaining a substantial portion of said absorbed water at a temperature above 100° C. and utilized in the preparation of said composition for molding, per 100 parts by weight of said thermoplastic elastomer; the ratio of said extender oil to said hygroscopic filler being from about 0.3 to about 3; disposing said mixture in a mold; exposing said mixture to microwave energy while simultaneously applying pressure below about 200 psi for a period of time sufficient to melt said mixture and cause the same to flow into the interstices of the mold.
Claim 21
Independent Claim
164 words
A method of flow molding a thermoplastic elastomer composition comprising: forming a mixture comprising: 100 parts by weight of a thermoplastic elastomer; at least about 10 parts by weight of an extender oil per 100 parts by weight of the said thermoplastic elastomer; and at least about 20 parts by weight of at least one solid, hygroscopic filler, having greater than 1 percent by weight of absorbed water and being capable of retaining a substantial portion of said absorbed water at a temperature above 100° C. and utilized in the preparation of said composition for molding, per 100 parts by weight of said thermoplastic elastomer; the ratio of said extender oil to said hygroscopic filler being from about 0.3 to about 3; disposing said mixture in a mold; exposing said mixture to microwave energy while simultaneously applying pressure below about 200 psi for a period of time sufficient to melt said mixture and cause the same to flow into the interstices of the mold.
Claim 22
Dependent Claim
18 words
A method in accordance with claim 19 wherein the thermoplastic copolymer is a conjugated diene/vinyl aromatic block copolymer.
Claim 23
Dependent Claim
23 words
A method in accordance with claim 20 wherein the copolymer is selected from the group consisting of linear block and radial teleblock copolymers.
Claim 24
Dependent Claim
15 words
A method in accordance with claim 21 wherein the copolymer is a radial teleblock copolymer.
Claim 25
Dependent Claim
27 words
A method in accordance with claim 19 wherein the thermoplastic elastomer is a butadiene/styrene block copolymer having a butadiene/styrene weight ratio of about 85/15 to about 45/55.
Claim 26
Dependent Claim
32 words
A method in accordance with claim 19 wherein the mixture contains up to about 150 parts by weight of a solid resinous polymer per 100 parts by weight of the thermoplastic elastomer.
Claim 27
Dependent Claim
34 words
A method in accordance with claim 24 when the solid resinous polymer is selected from the group consisting of homopolymers of a vinyl-substituted aromatic compound and copolymers of said compound with a copolymerizable compound.
Claim 28
Dependent Claim
25 words
A method in accordance with claim 25 wherein the copolymerizable compound is a compound selected from the group consisting of acrylonitrile and a conjugated diene.
Claim 29
Dependent Claim
18 words
A method in accordance with claim 19 wherein the thermoplastic elastomer is an oil extended butadiene/styrene block copolymer.
Claim 30
Dependent Claim
24 words
A method in accordance with claim 19 wherein the mixture contains ethylene/vinyl acetate copolymer in an amount sufficient to significantly reduce the molding time.
Claim 31
Dependent Claim
20 words
A method in accordance with claim 19 wherein the molding time is between about one second and about sixty seconds.
Claim 32
Dependent Claim
63 words
A method in accordance with claim 19 wherein the mixture contains about 250 to about 350 parts by weight of extender oil per 100 parts by weight of the thermoplastic elastomer, about 350 to about 500 parts by weight of the hygroscopic filler per 100 parts by weight of said thermoplastic elastomer and the oil/filler ratio is between about 0.5 and about 1.0.
Claim 33
Dependent Claim
24 words
A method in accordance with claim 19 wherein the mixture contains a polar compound in an amount sufficient to significantly reduce the molding time.
Claim 34
Dependent Claim
35 words
A method in accordance with claim 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30 or 31 wherein the hygroscopic filler has greater than about 4.0 percent by weight of absorbed water.
Claim 35
Dependent Claim
42 words
A method in accordance with claim 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30 or 31 wherein the hygroscopic filler is capable of retaining a substantial portion of the absorbed water at the temperature utilized in the molding.
Claim 36
Dependent Claim
27 words
A method in accordance with claim 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30 or 31 wherein the hygroscopic filler is bentonite clay.
Claim 37
Dependent Claim
27 words
A method in accordance with claim 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30 or 31 wherein the hygroscopic filler is wood flour.
Claim 38
Dependent Claim
27 words
A method in accordance with claim 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30 or 31 wherein the hygroscopic filler is ground cork.
Claim 39
Dependent Claim
114 words
A flexible, molded thermoplastic elastomer article comprising: 100 parts by weight of a thermoplastic elastomer; at least about 10 parts by weight of an extended oil per 100 parts by weight of said thermoplastic elastomer; and at least 20 parts by weight of at least one solid, hygroscopic filler, having greater than 1 percent by weight of absorbed water and being capable of retaining a substantial portion of said absorbed water at a temperature above 100° C. and utilized in the preparation of said article prior the molding thereof, per 100 parts by weight of said thermoplastic elastomer; the ratio of said extender oil to said hygroscopic filler being about 0.3 to about 3.
Claim 40
Dependent Claim
114 words
A flexible, molded thermoplastic elastomer article comprising: 100 parts by weight of a thermoplastic elastomer; at least about 10 parts by weight of an extended oil per 100 parts by weight of said thermoplastic elastomer; and at least 20 parts by weight of at least one solid, hygroscopic filler, having greater than 1 percent by weight of absorbed water and being capable of retaining a substantial portion of said absorbed water at a temperature above 100° C. and utilized in the preparation of said article prior the molding thereof, per 100 parts by weight of said thermoplastic elastomer; the ratio of said extender oil to said hygroscopic filler being about 0.3 to about 3.
Claim 41
Dependent Claim
18 words
An article in accordance with claim 37 wherein the thermoplastic elastomer is a conjugated diene/vinyl aromatic block copolymer.
Claim 42
Dependent Claim
23 words
An article in accordance with claim 38 wherein the copolymer is selected from the group consisting of linear block and radial teleblock copolymers.
Claim 43
Dependent Claim
15 words
An article in accordance with claim 39 wherein the copolymer is a radial teleblock copolymer.
Claim 44
Dependent Claim
27 words
An article in accordance with claim 37 wherein the thermoplastic elastomer is a butadiene/styrene block copolymer having a butadiene/styrene weight ratio of about 85/15 to about 45/55.
Claim 45
Dependent Claim
32 words
An article in accordance with claim 37 wherein the article contains up to about 150 parts by weight of a solid resinous polymer per 100 parts by weight of the thermoplastic elastomer.
Claim 46
Dependent Claim
34 words
An article in accordance with claim 42 wherein the solid resinous polymer is selected from the group consisting of a homopolymer of vinyl-substituted aromatic compound and copolymers of said compound with a copolymerizable compound.
Claim 47
Dependent Claim
25 words
An article in accordance with claim 43 wherein the copolymerizable compound is a compound selected from the group consisting of acrylonitrile and a conjugated diene.
Claim 48
Dependent Claim
18 words
An article in accordance with claim 37 wherein the thermoplastic elastomer is an oil extended butadiene/styrene block copolymer.
Claim 49
Dependent Claim
51 words
An article in accordance with claim 37 which additionally includes a polar agent in an amount sufficient to significantly increase the microwave energy absorptivity of the article and render the article moldable at a pressure less than about 200 psi and said article is flow molded by exposure to microwave energy.
Claim 50
Dependent Claim
30 words
An article in accordance with claim 46 wherein the article contains an ethylene/vinyl acetate copolymer in an amount sufficient to significantly reduce the time required for molding of the same.
Claim 51
Dependent Claim
23 words
An article in accordance with claim 46 wherein the article is molded in a time between about one second and about sixty seconds.
Claim 52
Dependent Claim
67 words
An article in accordance with claim 37 wherein the oil is present in amounts of about 250 to 350 parts by weight per 100 parts by weight of the thermoplastic elastomer, the hygroscopic filler is present in amounts of about 350 to about 500 parts by weight per 100 parts by weight of said thermoplastic elastomer and the oil/filler ratio is between about 0.5 and about 1.0.
Claim 53
Dependent Claim
18 words
An article in accordance with claim 37 wherein the article comprises a fabric substrate bonded to the elastomer.
Claim 54
Dependent Claim
14 words
An article in accordance with claim 50 wherein the fabric substrate is a carpeting.
Claim 55
Dependent Claim
37 words
An article in accordance with claim 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50 or 51 wherein the hygroscopic filler has greater than about 4.0 percent by weight of absorbed water.
Claim 56
Dependent Claim
46 words
An article in accordance with claim 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50 or 51 wherein the hygroscopic filler is capable of retaining a substantial portion of the absorbed water at the temperature at which said article was molded.
Claim 57
Dependent Claim
29 words
An article in accordance with claim 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50 or 51 wherein the hygroscopic filler is bentonite clay.
Claim 58
Dependent Claim
29 words
An article in accordance with claim 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50 or 51 wherein the hygroscopic filler is wood flour.
Claim 59
Dependent Claim
29 words
An article in accordance with claim 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50 or 51 wherein the hygroscopic filler is ground cork.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-11-18 | 1984-05-19 | 1984-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-11-18 | 1988-05-19 | 1988-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-11-18 | 1992-05-19 | 1992-11-18 | $7700.00 | Window Closed / Lapsed |