US4618213A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gelatinous elastomeric optical lens, light pipe, comprising a specific block copolymer and an oil plasticizer
Assignee: Applied Elastomerics Inc
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Filing: 1984-01-18
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Granted: 1986-10-21
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Expires: 2004-01-18
Abstract
Abstract A novel gelatinous composition is disclosed which contains an intimate melt blend admixture of poly(styrene-ethylene-butylene-styrene) triblock copolymer having said styrene end block to ethylene and butylene center block ratio within the range of from between 31:69 to 40:60, and high levels of a plasticizing oil. The gelatinous composition is transparent and have a novel combination of properties including unexpectedly high elongation and tensile strength and excellent shape retention after extreme deformation under high-velocity impact and stress conditions. The gelatinous products of this invention are soft, flexible, and have elastic memory, characterized by a gel rigidity of from about 20 gram to about 700 gram Bloom. These and other properties are particularly essential for the gelatinous composition to have utility as toys, therapeutic hand exercising grips, shock absorbers, acoustical isolators, and other uses.
Inventors
- 👤 John Y. Chen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:46
CPC Classifications
C; C08; C08L; C08L53/00; C08L53/02; A; A61; A61C; A61C15/00; A61C15/04; A61C15/041; C08K; C08K5/00; C08K5/01; C08L51/00; C08L53/025
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
74 words
A gelatinous elastomer composition consisting essentially of: (a) 100 parts by weight of triblock copolymer of the general configuration poly(styrene-ethylene-butylene-styrene) wherein said styrene end block to ethylene and butylene center block ratio is within the range of from between 31:69 to 40:60; (b) from about 300 to about 1,600 parts by weight of a plasticizing oil; (c) said gelatinous elastomer composition having a gel rigidity of about 20 gram to about 700 gram Bloom.
Claim 2
Dependent Claim
74 words
A gelatinous elastomer composition consisting essentially of: (a) 100 parts by weight of triblock copolymer of the general configuration poly(styrene-ethylene-butylene-styrene) wherein said styrene end block to ethylene and butylene center block ratio is within the range of from between 31:69 to 40:60; (b) from about 300 to about 1,600 parts by weight of a plasticizing oil; (c) said gelatinous elastomer composition having a gel rigidity of about 20 gram to about 700 gram Bloom.
Claim 3
Dependent Claim
27 words
A gelatinous elastomer composition of claim 1, wherein said plasticizing oil is selected from the group consisting of petroleum paraffinic oils, petroleum naphthenic oils, and mixtures thereof.
Claim 4
Dependent Claim
30 words
A gelatinous elastomer composition of claim 1, wherein said plasticizing oil is selected from the group consisting of synthetic polybutene oils, synthetic polypropene oils, synthetic polyterpene oils and mixtures thereof.
Claim 5
Dependent Claim
50 words
A gelatinous elastomer composition of claim 1, wherein said plasticizing oil is selected from the group consisting of petroleum paraffinic oils, petroleum naphthenic oils, synthetic polybutene oils, synthetic polypropylene oils, synthetic polyterpene oils and mixtures thereof; said oils having an average molecular weight of between about 200 to about 700.
Claim 6
Dependent Claim
25 words
A gelatinous elastomer composition of claim 4, wherein said styrene end block to ethylene and butylene center block ratio is about 32:68 to about 38:62.
Claim 7
Dependent Claim
25 words
A gelatinous elastomer composition of claim 4, wherein said styrene end block to ethylene and butylene center block ratio is about 32:68 to about 36:64.
Claim 8
Dependent Claim
25 words
A gelainous elastomer composition of claim 4, wherein said styrene end block to ethylene and butylene center block ratio is about 32:68 to about 34:66.
Claim 9
Dependent Claim
22 words
A gelatinous elastomer composition of claim 2, wherein said oils having an average molecular weight of between about 200 to about 700.
Claim 10
Dependent Claim
22 words
A gelatinous elastomer composition of claim 3, wherein said oils having an average molecular weight of between about 200 to about 700.
Claim 11
Dependent Claim
33 words
A toy solid hemisphere article formed from a gelatinous elastomer composition according to claim 1 wherein said article exhibits high creep, craze, tear, and crack resistance and is substantially free from oil bleedout.
Claim 12
Dependent Claim
32 words
A flexible toy rod formed from a gelatinous elastomer composition according to claim 2 wherein said article exhibits high creep, craze, tear, and crack resistance and is substantially free from oil bleedout.
Claim 13
Dependent Claim
12 words
An article formed from a gelatinous elastomer composition according to claim 3.
Claim 14
Dependent Claim
33 words
A cladding for optical fiber made from a gelatinous elastomer composition according to claim 4 wherein said article exhibits high creep, craze, tear, and crack resistance and is substantially free from oil bleedout.
Claim 15
Dependent Claim
30 words
A prism formed from a gelatinous elastomer composition according to claim 7 wherein said article exhibits high creep, craze, tear, and crack resistance and is substantially free from oil bleedout.
Claim 16
Dependent Claim
25 words
A gelatinous elastomer composition of claim 1, wherein said styrene end block to ethylene and butylene center block ratio is about 32:68 to about 38:62.
Claim 17
Dependent Claim
25 words
A gelatinous elastomer composition of claim 1, wherein said styrene end block to ethylene and butylene center block ratio is about 32:68 to about 36:64.
Claim 18
Dependent Claim
25 words
A gelatinous elastomer composition of claim 1, wherein said styrene end block to ethylene and butylene center block ratio is about 32:68 to about 34:66.
Claim 19
Dependent Claim
30 words
A article formed from a gelatinous elastomer composition according to claim 1 wherein said article exhibits high creep, craze, tear, and crack resistance and is substantially free from oil bleedout.
Claim 20
Dependent Claim
30 words
A article formed from a gelatinous elastomer composition according to claim 16 wherein said article exhibits high creep, craze, tear, and crack resistance and is substantially free from oil bleedout.
Claim 21
Dependent Claim
30 words
A article formed from a gelatinous elastomer composition according to claim 15 wherein said article exhibits high creep, craze, tear, and crack resistance and is substantially free from oil bleedout.
Claim 22
Dependent Claim
34 words
A transparent lens formed from a gelatinous elastomer composition of claim 1, 2, 3 or 4 wherein said article exhibits high creep, craze, tear, and crack resistance and is substantially free from oil bleedout.
Claim 23
Dependent Claim
36 words
A light conducting rod formed from a gelatinous elastomer composition according to claim 1, 2, 3, or 4 wherein said article exhibits high creep, craze, tear, and crack resistance and is substantially free from oil bleedout.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1989-10-20 | 1990-04-21 | 1990-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-10-20 | 1994-04-21 | 1994-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-10-20 | 1998-04-21 | 1998-10-21 | $7700.00 | Window Closed / Lapsed |