US4243426A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Asphalt compositions modified with organo-silane compounds
Assignee: Owens Corning Fiberglas Technology Inc
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Filing: 1979-08-13
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Granted: 1981-01-06
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Expires: 1999-08-13
Abstract
Abstract A bitumen composition modified with an organo silane in which a bitumen such as asphalt is reacted with an organo silane containing ethylenic unsaturation or an organo silane containing at least one hydrogen atom bonded to the silicon atom whereby the organo silanes react with ethylenic unsaturation of the bitumen to chemically bond the organo silane to the bitumen. Also included are bitumens which have been chemically modified by reaction with steam, air, ammonia or aliphatic amines which have been reacted with a silane containing a functional group reactive with the bitumen. Bitumen compositions of the invention are preferably used in the treatment of glass fibers for use as reinforcement in asphalt systems.
Inventors
- 👤 Alfred Marzocchi
- 👤 Michael G. Roberts
- 👤 Charles E. Bolen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:12
CPC Classifications
C; C10; C10C; C10C3/00; C10C3/02; C10C3/026; C03; C03C; C03C25/00; C03C25/10; C03C25/24; C03C25/26; C08; C08K; C08K5/00; C08K5/54; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2935
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
158 words
A silicon-modified bitumen composition prepared by reaction of (1) a bitumen selected from the group consisting of a bitumen and a bitumen chemically modified with a modifying agent selected from the group consisting of steam and air, and (2) an organo silicon compound selected from the group consisting of a compound having the formula: ##STR11## a compound having the formula: ##STR12## a compound having the formula: ##STR13## and a compound having the formula: ##STR14## wherein x is 0 or an integer from 1-3, Z is a readily hydrolyzable group; R 1 and R 2 are selected from the group consisting of Z and a non-hydrolyzable organic group; R 5 is hydrogen or methyl; P is O or --NH--; e is an integer from 2-6 and the hydrolysis products of said organo silicon compound, in the presence of a catalyst to promote the reaction between the ethylenic unsaturation of said organo silicon compound with ethylenic unsaturation in the bitumen.
Claim 2
Dependent Claim
158 words
A silicon-modified bitumen composition prepared by reaction of (1) a bitumen selected from the group consisting of a bitumen and a bitumen chemically modified with a modifying agent selected from the group consisting of steam and air, and (2) an organo silicon compound selected from the group consisting of a compound having the formula: ##STR11## a compound having the formula: ##STR12## a compound having the formula: ##STR13## and a compound having the formula: ##STR14## wherein x is 0 or an integer from 1-3, Z is a readily hydrolyzable group; R 1 and R 2 are selected from the group consisting of Z and a non-hydrolyzable organic group; R 5 is hydrogen or methyl; P is O or --NH--; e is an integer from 2-6 and the hydrolysis products of said organo silicon compound, in the presence of a catalyst to promote the reaction between the ethylenic unsaturation of said organo silicon compound with ethylenic unsaturation in the bitumen.
Claim 3
Dependent Claim
12 words
A bitumen as defined in claim 1 wherein the bitumen is asphalt.
Claim 4
Dependent Claim
15 words
A bitumen as defined in claim 1 wherein the catalyst is a free radical catalyst.
Claim 5
Dependent Claim
33 words
A bitumen as defined in claim 1 wherein the bitumen is an asphalt which has been treated with an oxygen-containing gas or steam having an oxygen content up to about 10% by weight.
Claim 6
Dependent Claim
98 words
A silicon-modified bitumen composition prepared by reaction of (1) an asphalt selected from the group consisting of a bitumen and a bitumen chemically modified with a modifying agent selected from the group consisting of steam and air, and (2) an organo silicon compound selected from the group consisting of an organo silane containing at least one hydrogen atom bonded to the silicon atom which is capable of reaction with ethylenically unsaturated double bonds of the bitumen in the presence of a catalyst effective to promote the reaction of the silicon compound with the ethylenic unsaturation of the bitumen.
Claim 7
Dependent Claim
98 words
A silicon-modified bitumen composition prepared by reaction of (1) an asphalt selected from the group consisting of a bitumen and a bitumen chemically modified with a modifying agent selected from the group consisting of steam and air, and (2) an organo silicon compound selected from the group consisting of an organo silane containing at least one hydrogen atom bonded to the silicon atom which is capable of reaction with ethylenically unsaturated double bonds of the bitumen in the presence of a catalyst effective to promote the reaction of the silicon compound with the ethylenic unsaturation of the bitumen.
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) | 1984-01-06 | 1984-07-07 | 1985-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-01-06 | 1988-07-07 | 1989-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-01-06 | 1992-07-07 | 1993-01-06 | $7700.00 | Window Closed / Lapsed |