US4412864A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Asphalt compositions and a vibration-damping sheet formed by the same
Assignee: Idemitsu Kosan Co Ltd
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Filing: 1981-04-10
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Granted: 1983-11-01
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Expires: 2001-04-10
Abstract
Abstract An asphalt composition comprising (A) 100 parts by weight of straight asphalt; (B) 0.1 to 20 parts by weight of a diene liquid rubber having at least one carboxyl group, epoxy group or amino group in the molecule; and (C) 2 to 350 parts by weight of (i) a fibrous filler or (ii) at least one filler selected from the group consisting of wood flour, talc, calcium carbonate, clay, carbon black and white carbon, having a grain size of 200 microns or less. The composition may also contain (D) 1 to 50 parts by weight of a resinous tackifier. The invention also provides a vibration damping sheet comprising said composition.
Inventors
- 👤 Tomozo Kurashige
- 👤 Hidetoshi Shimada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:50
CPC Classifications
C; C08; C08L; C08L95/00; C08K; C08K7/00; C08K7/02; C08K7/04; C08K7/10; C08K7/12; C08L15/00
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
60 words
An asphalt composition comprising (A) 100 parts by weight of asphalt; (B) 0.1 to 20 parts by weight of a diene liquid rubber having at least one carboxyl group, epoxy group or amino group in the molecule; and (C) 2 to 350 parts by weight of (i) an asbestos fibrous filler having a fiber length of 1 mm or less.
Claim 2
Dependent Claim
60 words
An asphalt composition comprising (A) 100 parts by weight of asphalt; (B) 0.1 to 20 parts by weight of a diene liquid rubber having at least one carboxyl group, epoxy group or amino group in the molecule; and (C) 2 to 350 parts by weight of (i) an asbestos fibrous filler having a fiber length of 1 mm or less.
Claim 3
Dependent Claim
12 words
The composition of claim 1, wherein said asphalt is a straight asphalt.
Claim 4
Dependent Claim
21 words
The composition of claim 2, wherein the diene liquid rubber is a butadiene homopolymer having a carboxyl group in the molecule.
Claim 5
Dependent Claim
21 words
The composition of claim 2, wherein the diene liquid rubber is a butadiene homopolymer having an epoxy group in the molecule.
Claim 6
Dependent Claim
18 words
The composition as claimed in claim 2, wherein the straight asphalt has a penetration of 40 to 100.
Claim 7
Dependent Claim
37 words
The composition of claim 1 or 2 or 3 or 4, wherein the diene liquid rubber has a number average molecular weight of 500 to 8,000 and a viscosity of 2,000 poises or less at 30° C.
Claim 8
Dependent Claim
96 words
An asphalt composition comprising: (A) 100 parts by weight of asphalt; (B) 0.1 to 20 parts by weight of a diene liquid rubber having at least one carboxyl group, epoxy group or amino group in the molecule; (C) 2 to 350 parts by weight of (i) a fibrous filler or (ii) at least one filler in particulate form selected from the group consisting of wood flour, talc, calcium carbonate, clay, carbon black and white carbon, having a particle size of 200 microns or less; and (D) 1 to 50 parts by weight of a resinous tackifier.
Claim 9
Dependent Claim
96 words
An asphalt composition comprising: (A) 100 parts by weight of asphalt; (B) 0.1 to 20 parts by weight of a diene liquid rubber having at least one carboxyl group, epoxy group or amino group in the molecule; (C) 2 to 350 parts by weight of (i) a fibrous filler or (ii) at least one filler in particulate form selected from the group consisting of wood flour, talc, calcium carbonate, clay, carbon black and white carbon, having a particle size of 200 microns or less; and (D) 1 to 50 parts by weight of a resinous tackifier.
Claim 10
Dependent Claim
12 words
The composition of claim 7, wherein the asphalt is a straight asphalt.
Claim 11
Dependent Claim
21 words
The composition of claim 8, wherein the diene liquid rubber is a butadiene homopolymer having a carboxyl group in the molecule.
Claim 12
Dependent Claim
21 words
The composition of claim 8, wherein the diene liquid rubber is a butadiene homopolymer having an epoxy group in the molecule.
Claim 13
Dependent Claim
16 words
The composition of claim 8, wherein the straight asphalt has a penetration of 40 to 100.
Claim 14
Dependent Claim
31 words
The composition of claim 8, wherein the diene liquid rubber has a number average molecular weight of 500 to 8,000 and a viscosity of 2,000 poises or less at 30° C.
Claim 15
Dependent Claim
10 words
The composition of claim 8, wherein the filler is asbestos.
Claim 16
Dependent Claim
32 words
The composition of any one of claims 8, 9, 10, 11, 12 or 13, wherein the resinous tackifier is a petroleum resin having a softening point of from 70° to 150° C.
Claim 17
Dependent Claim
66 words
A vibration-damping sheet formed from asphalt composition comprising: (A) 100 parts by weight of a straight asphalt; (B) 0.1 to 20 parts by weight of a diene liquid rubber having a carboxyl group, an epoxy group or an amino group in the molecule; and (C) 2 to 350 parts by weight of (i) an asbestos fibrous filler having a fiber length of 1 mm or less.
Claim 18
Dependent Claim
66 words
A vibration-damping sheet formed from asphalt composition comprising: (A) 100 parts by weight of a straight asphalt; (B) 0.1 to 20 parts by weight of a diene liquid rubber having a carboxyl group, an epoxy group or an amino group in the molecule; and (C) 2 to 350 parts by weight of (i) an asbestos fibrous filler having a fiber length of 1 mm or less.
Claim 19
Dependent Claim
27 words
The composition of claim 7 wherein said filler is a fibrous filler and said fibrous filler is asbestos having a fiber length of 1 mm or less.
Claim 20
Dependent Claim
83 words
An asphalt composition comprising (A) 100 parts by weight of asphalt; (B) 0.1 to 20 parts by weight of a diene liquid rubber which is a butadiene homopolymer having an epoxy group in the molecule; and (C) 2 to 350 parts by weight of (i) a fibrous filler; or (ii) at least one filler in particulate form selected from the group consisting of wood flour, talc, calcium carbonate, clay, carbon black, and white carbon, having a particle size of 200 microns or less.
Claim 21
Dependent Claim
83 words
An asphalt composition comprising (A) 100 parts by weight of asphalt; (B) 0.1 to 20 parts by weight of a diene liquid rubber which is a butadiene homopolymer having an epoxy group in the molecule; and (C) 2 to 350 parts by weight of (i) a fibrous filler; or (ii) at least one filler in particulate form selected from the group consisting of wood flour, talc, calcium carbonate, clay, carbon black, and white carbon, having a particle size of 200 microns or less.
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) | 1986-10-31 | 1987-05-02 | 1987-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-10-31 | 1991-05-02 | 1991-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-10-31 | 1995-05-02 | 1995-11-01 | $7700.00 | Window Closed / Lapsed |