US5130355A
Expired / Lapsed
US
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Haloalkoxylated polybutadiene polymer and roofing membrane formed therefrom
Assignee: Bridgestone Corp
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Filing: 1991-08-21
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Granted: 1992-07-14
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Expires: 2011-08-21
Abstract
Abstract A haloalkoxylated polybutadiene polymer and a composition containing the polymer which is suitable for use in a flat sheet material such as a roofing membrane is disclosed. The polymer has a superior filler capacity, excellent flame resistivity and acceptable heat aged tensile properties. The composition, which includes at least one polymer of the present invention and from about 5 to about 160 parts by weight of a filler material per 100 parts polymer, is self-adhering without the use of an adhesive and is heat seamable to produce seams which are resistant to temperatures as high as 100° C.
Inventors
- 👤 William L. Hergenrother
- 👤 James A. Davis
- 👤 Daniel R. McGillvary
- 👤 Joseph K. Valaitis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 00:41
CPC Classifications
E; E04; E04D; E04D5/00; E04D5/06; C; C08; C08C; C08C19/00; C08C19/12; C08C19/14
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
46 words
A substituted polybutadiene comprising the following groups: ##STR4## wherein X is a halogen; and R 1 is an aliphatic group having a carbon chain length of between 6 and 18 carbon atoms, inclusive; and a=0.05 to 0.95 mole fraction; b=0.05 to 0.95 mole fraction; and a+b=1.00.
Claim 2
Dependent Claim
46 words
A substituted polybutadiene comprising the following groups: ##STR4## wherein X is a halogen; and R 1 is an aliphatic group having a carbon chain length of between 6 and 18 carbon atoms, inclusive; and a=0.05 to 0.95 mole fraction; b=0.05 to 0.95 mole fraction; and a+b=1.00.
Claim 3
Dependent Claim
29 words
A substituted polybutadiene in accordance with claim 1 wherein said polybutadiene is a 1,4-polybutadiene formed by solution polymerization and having a M W /M N of 1.00 to 1.80.
Claim 4
Dependent Claim
28 words
A substituted polybutadiene in accordance with claim 2 wherein said polybutadiene is 1,4-polybutadiene formed by solution polymerization and having an M W /M N of 1.00 to 1.50.
Claim 5
Dependent Claim
21 words
A substituted polybutadiene in accordance with claim 3 wherein a=0.20 to 0.85 mole fraction; b=0.15 to 0.80 mole fraction; and a+b=1.00.
Claim 6
Dependent Claim
32 words
A substituted polybutadiene in accordance with claim 4 wherein R 1 is an aliphatic group having a carbon chain length of between 6 and 9 carbon atoms and wherein X is chlorine.
Claim 7
Dependent Claim
75 words
A composition comprising: (a) a polymer component comprising at least one substituted polybutadiene, said polybutadiene comprising the following groups: ##STR5## wherein X is a halogen; and R 1 is an aliphatic group having a carbon chain length of between 6 and 18 carbon atoms, inclusive; and a=0.05 to 9.95 mole fraction; b=0.05 to 0.95 mole fraction; and a+b=1.0; and (b) from 5 to 160 parts by weight of a filler material per 100 parts polymer.
Claim 8
Dependent Claim
75 words
A composition comprising: (a) a polymer component comprising at least one substituted polybutadiene, said polybutadiene comprising the following groups: ##STR5## wherein X is a halogen; and R 1 is an aliphatic group having a carbon chain length of between 6 and 18 carbon atoms, inclusive; and a=0.05 to 9.95 mole fraction; b=0.05 to 0.95 mole fraction; and a+b=1.0; and (b) from 5 to 160 parts by weight of a filler material per 100 parts polymer.
Claim 9
Dependent Claim
20 words
A composition in accordance with claim 6 wherein a=0.20 to 0.85 mole fraction; b=0.15 to 0.80 mole fraction; and a+b=1.00.
Claim 10
Dependent Claim
30 words
A composition in accordance with claim 7 wherein R 1 is an aliphatic group having a carbon chain length of between 6 and 9 carbon atoms and X is chlorine.
Claim 11
Dependent Claim
23 words
A composition in accordance with claim 8 wherein said filler material is between 50 and 135 parts by weight per 100 parts polymer.
Claim 12
Dependent Claim
35 words
A composition in accordance with claim 9 wherein said filler is selected from the group consisting of titanium dioxide, carbon black, ground coal, ground mollusk shells, calcium carbonate, mica, talc and silica or mixtures thereof.
Claim 13
Dependent Claim
13 words
A composition in accordance with claim 10 wherein said filler is titanium dioxide.
Claim 14
Dependent Claim
77 words
A heat-seamable, flat sheet material comprising: (a) a polymer component comprising at least one substituted polybutadiene, said polybutadiene comprising the following groups: ##STR6## wherein X is a halogen; and R 1 is an aliphatic group having a carbon chain length of between 6 and 18 carbon atoms, inclusive; and a=0.05 to 9.95 mole fraction; b=0.05 to 9.95 mole fraction; a+b=1.00; and (b) from 5 to 160 parts by weight of a filler material per 100 parts polymer.
Claim 15
Dependent Claim
77 words
A heat-seamable, flat sheet material comprising: (a) a polymer component comprising at least one substituted polybutadiene, said polybutadiene comprising the following groups: ##STR6## wherein X is a halogen; and R 1 is an aliphatic group having a carbon chain length of between 6 and 18 carbon atoms, inclusive; and a=0.05 to 9.95 mole fraction; b=0.05 to 9.95 mole fraction; a+b=1.00; and (b) from 5 to 160 parts by weight of a filler material per 100 parts polymer.
Claim 16
Dependent Claim
14 words
A material in accordance with claim 12 wherein said material is a roofing membrane.
Claim 17
Dependent Claim
104 words
A process for forming the polymer of claim 1 comprising: (a) providing a base polymer of polybutadiene having a weight average molecular weight of between about 150,000 and 350,000 and an M W /M N of about 1.00 to about 1.80; (b) dissolving said polymer in a solvent mixture, said mixture including an alcohol having a carbon chain length of between about 6 and about 18 carbon atoms, inclusive, thereby forming a polymer solution; (c) treating said polymer solution with a halogen; and (d) supplying air to act as a diluent and to stop the radical chain addition of said halogen to said polymer.
Claim 18
Dependent Claim
27 words
A process in accordance with claim 14 further comprising forming said base polymer by solution polymerization in the presence of n-butyl lithium in a heated reaction system.
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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) | 1995-07-14 | 1996-01-13 | 1996-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-07-14 | 2000-01-13 | 2000-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-07-14 | 2004-01-13 | 2004-07-14 | $7700.00 | Window Closed / Lapsed |