Patent US4889885A successfully refreshed from Google Patents.
US4889885A
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Composite material containing a layered silicate
Assignee: Toyota Central R&D Labs Inc
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Filing: 1988-03-04
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Granted: 1989-12-26
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Expires: 2008-03-04
Abstract
Abstract A composite material comprising a resin other than polyamide resin and a layered silicate dispersed therein, said layered silicate having a layer thickness of 7 to 12 ANGSTROM and an interlayer distance of 30 ANGSTROM or above. Owing to the layered silicate uniformly dispersed in the resin matrix, the composite material is superior in mechanical characteristics and heat resistance. It also has good water resistance and chemical resistance.
Inventors
- 👤 Arimitsu Usuki
- 👤 Tadashi Mizutani
- 👤 Yoshiaki Fukushima
- 👤 Megumi Fujimoto
- 👤 Kenzo Fukumori
- 👤 Yoshitsugu Kojima
- 👤 Norio Sato
- 👤 Toshio Kurauchi
- 👤 Osami Kamigaito
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:00
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/34; C01; C01B; C01B33/00; C01B33/20; C01B33/36; C01B33/38; C01B33/44; C04; C04B; C04B14/00; C04B14/02; C04B14/04; C04B14/10; C04B14/20; C04B14/206; C04B24/00; C04B24/40; C04B24/42; C04B24/425; C04B26/00; C04B26/02; C08F; C08F2/00; C08F2/44; C08K9/00; C08K9/04; C10; C10M; C10M113/00; C10M113/16; C10M169/00; C08K2201/00; C08K2201/014; C10M2201/00; C10M2201/10; C10M2201/102; C10M2201/103; C10M2201/14; C10M2201/145; C10M2205/00; C10M2205/003; C10M2209/00; C10M2209/02; C10M2209/10; C10M2209/101; C10M2215/00; C10M2215/02
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
75 words
A composite material, which comprises: (a) at least one resin selected from the group consisting of a vinyl-based polymeric compound, a thermosetting resin and a rubber, and (b) a layered silicate uniformly dispersed in said resin, said layered silicate having a layer thickness of about 7 to 12 Å and an interlayer distance of at least about 30 Å, wherein said at least one resin is connected to said layered silicate through an intermediate therebetween.
Claim 2
Dependent Claim
75 words
A composite material, which comprises: (a) at least one resin selected from the group consisting of a vinyl-based polymeric compound, a thermosetting resin and a rubber, and (b) a layered silicate uniformly dispersed in said resin, said layered silicate having a layer thickness of about 7 to 12 Å and an interlayer distance of at least about 30 Å, wherein said at least one resin is connected to said layered silicate through an intermediate therebetween.
Claim 3
Dependent Claim
15 words
The composite material as claimed in claim 1, wherein said intermediate is an ionic bond.
Claim 4
Dependent Claim
32 words
The composite material as claimed in claim 1 wherein said layered silicate is negatively charged and one negative charge occupies an area of 25 to 200 Å 2 on the layer surface.
Claim 5
Dependent Claim
30 words
The composite material as claimed in claim 1 wherein the content of said layered silicate is 0.05 to 150 parts by weight per 100 parts by weight of the resin.
Claim 6
Dependent Claim
59 words
The composite material as claimed in claim 1 wherein the composite material comprises a complex and solid rubber, said complex being composed of liquid rubber having a positively charged group and the layered silicate uniformly dispersed therein, the interlayer distance of said layered silicate being greater than 30 Å and the liquid rubber being dissolved in the solid rubber.
Claim 7
Dependent Claim
22 words
A composite material as claimed in claim 5, wherein the liquid rubber is one which has a molecular weight greater than 1000.
Claim 8
Dependent Claim
36 words
The composite material as claimed in claim 5, wherein the layered silicate is contained in the complex in an amount of 20 to 1000 parts by weight per 100 parts by weight of the liquid rubber.
Claim 9
Dependent Claim
32 words
The composite material as claimed in claim 5, wherein the solid rubber is at least one selected from the croup consisting of natural rubber, synthetic rubber, thermoplastic elastomer, and a blend thereof.
Claim 10
Dependent Claim
16 words
The composite material as claimed in claim 5, wherein the solid rubber is a diene rubber.
Claim 11
Dependent Claim
23 words
The composite material as claimed in claim 5, wherein the solid rubber is one which has a molecular weight not less than 10000.
Claim 12
Dependent Claim
30 words
The composite material as claimed in claim 5, wherein the content of said complex is 1 to 10 parts by weight per 100 parts by weight of the solid rubber.
Claim 13
Dependent Claim
13 words
The composite material as claimed in claim 1, which further comprises carbon black.
Claim 14
Dependent Claim
29 words
The composite material as claimed in claim 12, wherein the content of carbon black is 0 to 100 parts by weight for 100 parts by weight of solid rubber.
Claim 15
Dependent Claim
13 words
The composite material as claimed in claim 1, wherein said resin is rubber.
Claim 16
Dependent Claim
17 words
The composite material as claimed in claim 1, wherein said layered silicate is a smectite clay mineral.
Claim 17
Dependent Claim
78 words
A composite material, which comprises: (a) at least one resin selected from the group consisting of a vinyl-based polymeric compound and a thermosetting resin, and (b) a layered silicate uniformly dispersed in said resin, wherein said layered silicate has a layer thickness of about 7 to 12 Å and an interlayer distance of at least about 30 Å, and wherein said at least one resin is connected to said layered silicate through the side chains of said resin.
Claim 18
Dependent Claim
78 words
A composite material, which comprises: (a) at least one resin selected from the group consisting of a vinyl-based polymeric compound and a thermosetting resin, and (b) a layered silicate uniformly dispersed in said resin, wherein said layered silicate has a layer thickness of about 7 to 12 Å and an interlayer distance of at least about 30 Å, and wherein said at least one resin is connected to said layered silicate through the side chains of said resin.
Claim 19
Dependent Claim
62 words
A composite material, which comprises: (a) solid rubber, and (b) a layered silicate uniformly dispersed in said resin, wherein said layered silicate has a layer thickness of about 7 to 12 Å, and an interlayer distance of at least about 30 Å, and wherein said solid rubber is connected with said layered silicate through a liquid rubber dissolved in said sloid rubber.
Claim 20
Dependent Claim
62 words
A composite material, which comprises: (a) solid rubber, and (b) a layered silicate uniformly dispersed in said resin, wherein said layered silicate has a layer thickness of about 7 to 12 Å, and an interlayer distance of at least about 30 Å, and wherein said solid rubber is connected with said layered silicate through a liquid rubber dissolved in said sloid rubber.
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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) | 1992-12-25 | 1993-06-26 | 1993-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-12-25 | 1997-06-26 | 1997-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-12-25 | 2001-06-26 | 2001-12-26 | $7700.00 | Window Closed / Lapsed |