US4533598A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extended polyurethanes
Assignee: Caschem Inc
•
Filing: 1983-11-18
•
Granted: 1985-08-06
•
Expires: 2003-11-18
Abstract
Abstract A cyclic olefin extended polyurethane system comprising the reaction product of an isocyanate terminated polyisocyanate with a polyol in the presence of a cyclic olefin extender and, optionally, a liquid ester or other type of extender. Said polyurethane systems are cured, crosslinked, non-spewing, grease compatible, and reenterable. This extended polyurethane is further characterized as having superior insulating properties so that it can be used for repairing, encapsulation or reclaiming electrical or telephone cables as well as hard volume encapsulants for general elastomer use. The extended polyurethane is comprised of a defined polyurethane, novel extender combinations, and optionally, a coupling agent.
Inventors
- 👤 William J. Downey
- 👤 Melvin Brauer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:58
CPC Classifications
H; H01; H01B; H01B3/00; H01B3/18; H01B3/30; H01B3/302; C; C08; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/0838; C08G18/0842; C08K; C08K5/00; C08K5/01; C08L; C08L75/00; C08L75/04; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/294; Y10T428/2942; Y10T428/2947
Claims Analysis
Total Claims: 56
Claim 1
Independent Claim
82 words
A cyclic olefin extended polyurethane gel composition comprising the liquid reaction product of an organic polyisocyanate wih a polyol having an equivalent weight of between about 230 and 6,000 in the present of a first extender comprising a liquid cyclic olefin which is compatible with the resulting polyurethane; the polyisocyanate/polyol reaction product being present in an amount of about 8 to 49 parts by weight, and the cyclic olefin being present in an amount of about 90 to 51 parts by weight.
Claim 2
Dependent Claim
82 words
A cyclic olefin extended polyurethane gel composition comprising the liquid reaction product of an organic polyisocyanate wih a polyol having an equivalent weight of between about 230 and 6,000 in the present of a first extender comprising a liquid cyclic olefin which is compatible with the resulting polyurethane; the polyisocyanate/polyol reaction product being present in an amount of about 8 to 49 parts by weight, and the cyclic olefin being present in an amount of about 90 to 51 parts by weight.
Claim 3
Dependent Claim
20 words
The system of claim 1 wherein said polyisocyanate is selected from the group consisting of aliphatic, cycloaliphatic, and aromatic polyisocyanates.
Claim 4
Dependent Claim
16 words
The composition according to claim 2 wherein said polyisocyanate is polymethylene polyphenylisocyanate or diphenyl methane diisocyanate.
Claim 5
Dependent Claim
25 words
The composition according to claim 1 wherein said polyisocyanate is a polyisocyanate prepolymer prepared by reacting an excess of a polyisocyanate compound and a polyol.
Claim 6
Dependent Claim
31 words
The composition according to claim 1 wherein said polyol is selected from the group consisting of castor oil, polyether polyols, hydroxyl-bearing homopolymers of dienes, hydroxyl-bearing copolymers of dienes, and mixtures thereof.
Claim 7
Dependent Claim
14 words
The composition according to claim 5 wherein said polyol is a hydroxyl terminated polybutadiene.
Claim 8
Dependent Claim
20 words
The composition according to claim 1 which further comprises up to about 50 parts by weight of a coupling agent.
Claim 9
Dependent Claim
16 words
The composition according to claim 1 wherein the cyclic olefin component further comprises a benzenoid compound.
Claim 10
Dependent Claim
20 words
The composition according to claim 1 which further comprises up to about 50 parts by weight of a second extender.
Claim 11
Dependent Claim
86 words
A cyclic olefin extended polyurethane gel composition comprising the liquid reaction product of an organic polyisocyanate with a polyol having an equivalent weight of between about 230 and 6,000 in the presence of a first extender of a liquid cyclic olefin selected from the group consisting of dipentene, pinene, dicyclopentadiene, and polycyclopentadiene, the polyisocyanate/polyol reaction product being present in an amount of about 8 to 99 parts by weight, and said cyclic olefin being present in an amount of about 92 to 1 part by weight.
Claim 12
Dependent Claim
86 words
A cyclic olefin extended polyurethane gel composition comprising the liquid reaction product of an organic polyisocyanate with a polyol having an equivalent weight of between about 230 and 6,000 in the presence of a first extender of a liquid cyclic olefin selected from the group consisting of dipentene, pinene, dicyclopentadiene, and polycyclopentadiene, the polyisocyanate/polyol reaction product being present in an amount of about 8 to 99 parts by weight, and said cyclic olefin being present in an amount of about 92 to 1 part by weight.
Claim 13
Dependent Claim
20 words
The composition according to claim 10 which further comprises up to about 20 parts by weight of a coupling agent.
Claim 14
Dependent Claim
20 words
The composition according to claim 10 which further comprises up to about 20 parts by weight of a second extender.
Claim 15
Dependent Claim
26 words
The composition according to claim 11 wherein said coupling agent is selected from the group consisting of phthalates, adipates, glutarates, fumarates, sebacates, citrates, and mixtures thereof.
Claim 16
Dependent Claim
15 words
The composition according to claim 13 wherein said coupling agent is diundecylphthalate, diisodecylphthalate, or diisodecyladipate.
Claim 17
Dependent Claim
22 words
The composition according to claim 12 wherein said second extender is selected from the group consisting of processing oils and solid fillers.
Claim 18
Dependent Claim
17 words
The composition according to claim 12 wherein said second extender is a paraffinic or naphthenic mineral oil.
Claim 19
Dependent Claim
87 words
A process for providing a fluid impervious re-enterable protective seal around an insulated electrical device which comprises: (a) introducing a cyclic olefin extended polyurethane gel composition comprising the liquid reaction product of an organic polyisocyanate with a polyol having an equivalent weight of between about 230 and 6,000 in the presence of a liquid cyclic olefin selected from the group consisting of dipentene, pinene, dicyclopentadiene, and polycyclopentadiene into a confined space surrounding the section of the device to be protected; and (b) allowing said composition to cure.
Claim 20
Dependent Claim
87 words
A process for providing a fluid impervious re-enterable protective seal around an insulated electrical device which comprises: (a) introducing a cyclic olefin extended polyurethane gel composition comprising the liquid reaction product of an organic polyisocyanate with a polyol having an equivalent weight of between about 230 and 6,000 in the presence of a liquid cyclic olefin selected from the group consisting of dipentene, pinene, dicyclopentadiene, and polycyclopentadiene into a confined space surrounding the section of the device to be protected; and (b) allowing said composition to cure.
Claim 21
Dependent Claim
65 words
An insulated electrical device comprising a plurality of insulated wire conductors and a cured re-enterable cyclic olefin extended polyurethane gel composition comprising the liquid reaction product of an organic polyisocyanate with a polyol having equivalent weight of between about 230 and 6,000 in the presence of a first extender comprising a liquid cyclic olefin selected from the group consisting of dipentene, pinene, dicyclopentadiene, and polycyclopentadiene.
Claim 22
Dependent Claim
65 words
An insulated electrical device comprising a plurality of insulated wire conductors and a cured re-enterable cyclic olefin extended polyurethane gel composition comprising the liquid reaction product of an organic polyisocyanate with a polyol having equivalent weight of between about 230 and 6,000 in the presence of a first extender comprising a liquid cyclic olefin selected from the group consisting of dipentene, pinene, dicyclopentadiene, and polycyclopentadiene.
Claim 23
Dependent Claim
13 words
The process according to claim 17 wherein said insulated electrical device is encapsulated.
Claim 24
Dependent Claim
29 words
The process according to claim 19 wherein said gel composition comprises about 30 to 60 parts polyisocyanate polyol reaction product and about 40 to 70 parts liquid cyclic olefin.
Claim 25
Dependent Claim
86 words
A process for providing a fluid impervious re-enterable protective seal in the interior free spaces of an insulated electrical device which comprises; (a) introducing a cyclic olefin extended polyurethane gel composition comprising the liquid reaction product of an organic polyisocyanate with a polyol having an equivalent weight from about 230 to 6,000 in the presence of a liquid cyclic olefin selected from the group consisting of dipentene, pinene, dicyclopentadiene, and polycyclopentadiene into the interior free spaces of the device; and (b) allowing said composition to cure.
Claim 26
Dependent Claim
86 words
A process for providing a fluid impervious re-enterable protective seal in the interior free spaces of an insulated electrical device which comprises; (a) introducing a cyclic olefin extended polyurethane gel composition comprising the liquid reaction product of an organic polyisocyanate with a polyol having an equivalent weight from about 230 to 6,000 in the presence of a liquid cyclic olefin selected from the group consisting of dipentene, pinene, dicyclopentadiene, and polycyclopentadiene into the interior free spaces of the device; and (b) allowing said composition to cure.
Claim 27
Dependent Claim
34 words
The process according to claim 21 wherein said gel composition is introduced into the interior free spaces or core of the insulated electrical device so as to displace liquid penetrants and reclaim the device.
Claim 28
Dependent Claim
28 words
The process according to claim 21 wherein said composition comprises about 8 to 30 parts polyisocyanate polyol reaction product and about 92 to 70 parts liquid cyclic olefin.
Claim 29
Dependent Claim
30 words
The process according to claim 17 further comprising up to about 40 parts by weight of a second extender and/or up to 50 parts by weight of a solid filler.
Claim 30
Dependent Claim
30 words
The process according to claim 21 further comprising up to about 40 parts by weight of a second extender and/or up to 50 parts by weight of a solid filler.
Claim 31
Dependent Claim
10 words
The encapsulated insulated electrical device produced according to claim 19.
Claim 32
Dependent Claim
10 words
The encapsulated insulated electrical device produced according to claim 20.
Claim 33
Dependent Claim
10 words
The reclaimed insulated electrical device produced according to claim 22.
Claim 34
Dependent Claim
10 words
The reclaimed insulated electrical device produced according to claim 23.
Claim 35
Dependent Claim
80 words
A cyclic olefin extended polyurethane gel composition consisting essentially of the liquid reaction product of an organic polyisocyanate with a polyol having an equivalent weight of between about 230 and 6000 in the presence of a liquid cyclic olefin which is compatible with the resulting polyurethane, the polyisocyanate/polyol reaction product being present in an amount of about 8 to 99 parts by weight, and the cyclic olefin being present in an amount of about 92 to 1 part by weight.
Claim 36
Dependent Claim
80 words
A cyclic olefin extended polyurethane gel composition consisting essentially of the liquid reaction product of an organic polyisocyanate with a polyol having an equivalent weight of between about 230 and 6000 in the presence of a liquid cyclic olefin which is compatible with the resulting polyurethane, the polyisocyanate/polyol reaction product being present in an amount of about 8 to 99 parts by weight, and the cyclic olefin being present in an amount of about 92 to 1 part by weight.
Claim 37
Dependent Claim
101 words
A process for providing a fluid impervious re-enterable protective seal around an insulated electrical device which comprises: (a) introducing a cyclic olefin extended polyurethane gel composition comprising from about 8 to 49 parts by weight of a liquid reaction product of an organic polyisocyanate with a polyol having an equivalent weight of between about 230 and 6,000 in the presence of between about 92 and 51 parts by weight of a liquid cyclic olefin which is compatible with the resulting polyurethane, into a confined space surrounding the section of the device to be protected; and (b) allowing said composition to cure.
Claim 38
Dependent Claim
101 words
A process for providing a fluid impervious re-enterable protective seal around an insulated electrical device which comprises: (a) introducing a cyclic olefin extended polyurethane gel composition comprising from about 8 to 49 parts by weight of a liquid reaction product of an organic polyisocyanate with a polyol having an equivalent weight of between about 230 and 6,000 in the presence of between about 92 and 51 parts by weight of a liquid cyclic olefin which is compatible with the resulting polyurethane, into a confined space surrounding the section of the device to be protected; and (b) allowing said composition to cure.
Claim 39
Dependent Claim
13 words
The process according to claim 31 wherein said insulated electrical device is encapsulated.
Claim 40
Dependent Claim
100 words
A process for providing a fluid impervious re-enterable protective seal in the interior free spaces of an insulated electrical device which comprises; (a) introducing a cyclic olefin extended polyurethane gel composition comprising from about 8 to 49 parts by weight of a liquid reaction product of an organic polyisocyanate with a polyol having an equivalent weight from about 230 to 6,000 in the presence of between about 92 and 51 parts by weight of a liquid cyclic olefin which is compatible with the resulting polyurethane, into the interior free spaces of the device; and (b) allowing said composition to cure.
Claim 41
Dependent Claim
100 words
A process for providing a fluid impervious re-enterable protective seal in the interior free spaces of an insulated electrical device which comprises; (a) introducing a cyclic olefin extended polyurethane gel composition comprising from about 8 to 49 parts by weight of a liquid reaction product of an organic polyisocyanate with a polyol having an equivalent weight from about 230 to 6,000 in the presence of between about 92 and 51 parts by weight of a liquid cyclic olefin which is compatible with the resulting polyurethane, into the interior free spaces of the device; and (b) allowing said composition to cure.
Claim 42
Dependent Claim
34 words
The process according to claim 33 wherein said gel composition is introduced into the interior free spaces or core of the insulated electrical device so as to displace liquid penetrants and reclaim the device.
Claim 43
Dependent Claim
85 words
A process for providing a fluid impervious re-enterable protective seal around an insulated electrical device which comprises: (a) introducing a cyclic olefin extended polyurethane gel composition consisting essentially of a liquid reaction product of an organic polyisocyanate with a polyol having an equivalent weight of between about 230 and 6,000 in the presence of a liquid cyclic olefin which is compatible with the resulting polyurethane, into a confined space surrounding the section of the device to be protected; and (b) allowing said composition to cure.
Claim 44
Dependent Claim
85 words
A process for providing a fluid impervious re-enterable protective seal around an insulated electrical device which comprises: (a) introducing a cyclic olefin extended polyurethane gel composition consisting essentially of a liquid reaction product of an organic polyisocyanate with a polyol having an equivalent weight of between about 230 and 6,000 in the presence of a liquid cyclic olefin which is compatible with the resulting polyurethane, into a confined space surrounding the section of the device to be protected; and (b) allowing said composition to cure.
Claim 45
Dependent Claim
84 words
A process for providing a fluid impervious re-enterable protective seal in the interior free spaces of an insulated electrical device which comprises; (a) introducing a cyclic olefin extended polyurethane gel composition consisting essentially of a liquid reaction product of an organic polyisocyanate with a polyol having an equivalent weight from about 230 to 6,000 in the presence of a liquid cyclic olefin which is compatible with the resulting polyurethane into the interior free spaces of the device; and (b) allowing said composition to cure.
Claim 46
Dependent Claim
84 words
A process for providing a fluid impervious re-enterable protective seal in the interior free spaces of an insulated electrical device which comprises; (a) introducing a cyclic olefin extended polyurethane gel composition consisting essentially of a liquid reaction product of an organic polyisocyanate with a polyol having an equivalent weight from about 230 to 6,000 in the presence of a liquid cyclic olefin which is compatible with the resulting polyurethane into the interior free spaces of the device; and (b) allowing said composition to cure.
Claim 47
Dependent Claim
10 words
The encapsulated insulated electrical device produced according to claim 31.
Claim 48
Dependent Claim
10 words
The encapsulated insulated electrical device produced according to claim 32.
Claim 49
Dependent Claim
10 words
The encapsulated insulated electrical device produced according to claim 35.
Claim 50
Dependent Claim
10 words
The reclaimed insulated electrical device produced according to claim 33.
Claim 51
Dependent Claim
10 words
The reclaimed insulated electrical device produced according to claim 34.
Claim 52
Dependent Claim
10 words
The reclaimed insulated electrical device produced according to claim 36.
Claim 53
Dependent Claim
80 words
An insulated electrical device comprising a plurality of insulated wire conductors and a cured re-enterable cyclic olefin extended polyurethane gel composition comprising from about 8 to 49 parts by weight of a liquid reaction product of an organic polyisocyanate with a polyol having an equivalent weight of between about 230 and 6,000 in the presence of between about 92 and 51 parts by weight of a first extender comprising a liquid cyclic olefin which is compatible with the resulting polyurethane.
Claim 54
Dependent Claim
80 words
An insulated electrical device comprising a plurality of insulated wire conductors and a cured re-enterable cyclic olefin extended polyurethane gel composition comprising from about 8 to 49 parts by weight of a liquid reaction product of an organic polyisocyanate with a polyol having an equivalent weight of between about 230 and 6,000 in the presence of between about 92 and 51 parts by weight of a first extender comprising a liquid cyclic olefin which is compatible with the resulting polyurethane.
Claim 55
Dependent Claim
64 words
An insulated electrical device comprising a plurality of insulated wire conductors and a cured re-enterable cyclic olefin extended polyurethane gel composition consisting essentially of a liquid reaction product of an organic polyisocyanate with a polyol having an equivalent weight of between about 230 and 6,000 in the presence of a first extender comprising a liquid cyclic olefin which is compatible with the resulting polyurethane.
Claim 56
Dependent Claim
64 words
An insulated electrical device comprising a plurality of insulated wire conductors and a cured re-enterable cyclic olefin extended polyurethane gel composition consisting essentially of a liquid reaction product of an organic polyisocyanate with a polyol having an equivalent weight of between about 230 and 6,000 in the presence of a first extender comprising a liquid cyclic olefin which is compatible with the resulting polyurethane.
References Cited (Backward Citations)
US3047520A
Cited
US3136732A
Cited
US3390119A
Cited
US3338861A
Cited
US3869421A
Cited
US3748294A
Cited
US3963656A
Cited
US3886111A
Cited
US3801532A
Cited
US3883465A
Cited
US3886102A
Cited
US4067834A
Cited
US4171998A
Cited
US4076660A
Cited
US3933725A
Cited
US3980606A
Cited
US4102716A
Cited
US4176239A
Cited
US4122058A
Cited
US4281210A
Cited
US4264486A
Cited
US4231986A
Cited
US4396053A
Cited
US4375521A
Cited
US4373057A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-08-05 | 1989-02-04 | 1989-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-08-05 | 1993-02-04 | 1993-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-08-05 | 1997-02-04 | 1997-08-06 | $7700.00 | Window Closed / Lapsed |