Patent US6137782A successfully refreshed from Google Patents.
Patent US4228218A successfully refreshed from Google Patents.
US4228218A
Expired / Lapsed
US
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Polymer composite material
Assignee: Asahi Kasei Corp
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Filing: 1978-11-06
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Granted: 1980-10-14
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Expires: 1998-11-06
Abstract
Abstract A polymer composite material which comprises a first rigid polymeric material composed substantially of rigid molecular chains having an average chain length of 50 A or more, and a second polymeric material composed substantially of flexible molecular chains, wherein said first rigid polymeric material is present in an amount of 20% or less based on the total weight of polymeric material in said composite and said first material is uniformly dispersed in said second polymeric material in a microscopic region of 1 μm or less.
Inventors
- 👤 Motowo Takayanagi
- 👤 Tisato Kajiyama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:06
CPC Classifications
C; C08; C08L; C08L101/00; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31507; Y10T428/31551; Y10T428/31562; Y10T428/31786; Y10T428/31855; Y10T428/31909; Y10T428/31913; Y10T428/3192
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
252 words
A polymer composite material which comprises a first rigid polymeric material composed substantially of rigid molecular chains having an average chain length of 50 A or more, and comprising at least one member selected from the group consisting of poly(p-phenylene terephthalamide); copolymers prepared by substituting a portion of the poly(p-phenylene terephthalamide) with 2,6-naphthalene or p,p'-biphenyl, poly(p-benzamide); aromatic polyesters prepared from a halogenated hydroquinone, a methylhydroquinone or 2,6-dihydroxynaphthalene and terephthalic acid; aromatic poly-Schiff bases prepared from 2-methyl-p-phenylenediamine and terephthalaldehyde and copolymers thereof; N-substituted nylon-1; poly(spiro-2,3-hepta-4,6-diene) and hydrogenated derivatives thereof; poly)terephthaloyl-p-aminobenzoyl-hydrazide; and polymers comprising a straight chain of poly-p-phenylene; and a flexible second polymeric material composed substantially of flexible molecular chains and comprising at least one member selected from the group consisting of polyacrylonitrile and copolymers thereof; nylons 6, 66, 610 and 12; polyethylene terephthalate; poly-butylene terephthalate; polyethylene terephthalate-polybutylene terephthalate block copolymer; polyethylene terephthalate-polytetraemethylene glycol block copolymer; polyethylene terephthalate-polyethylene glycol block copolymer; polyurethane; segmented polyurethanes; polyethylene; polypropylene; polybutene; ethylene-propylene copolymer; polycarbonate; polyacetals; polysulfones; polyvinyl chloride and copolymers thereof; polyvinylidene chloride and derivatives thereof; polymethyl methacrylates; acrylate copolymer elastic materials; polystyrene; acrylonitrilestyrene copolymer; acrylonitrile-styrene-butadiene copolymer; polyvinyl acetates; polyvinyl formal; polyvinyl acetal; polyvinyl butyral; ethylene-vinyl acetate copolymers; ethyleneacrylate copolymers and hydrolyzed products thereof; polyvinyl alcohols; and styrene-butadiene block copolymers, wherein said first rigid polymeric material is present is an amount of 20% or less based on the total weight of polymeric material in said composite and said first material is uniformly dispersed in said second polymeric material in a microscope region of 1 μm or less.
Claim 2
Dependent Claim
252 words
A polymer composite material which comprises a first rigid polymeric material composed substantially of rigid molecular chains having an average chain length of 50 A or more, and comprising at least one member selected from the group consisting of poly(p-phenylene terephthalamide); copolymers prepared by substituting a portion of the poly(p-phenylene terephthalamide) with 2,6-naphthalene or p,p'-biphenyl, poly(p-benzamide); aromatic polyesters prepared from a halogenated hydroquinone, a methylhydroquinone or 2,6-dihydroxynaphthalene and terephthalic acid; aromatic poly-Schiff bases prepared from 2-methyl-p-phenylenediamine and terephthalaldehyde and copolymers thereof; N-substituted nylon-1; poly(spiro-2,3-hepta-4,6-diene) and hydrogenated derivatives thereof; poly)terephthaloyl-p-aminobenzoyl-hydrazide; and polymers comprising a straight chain of poly-p-phenylene; and a flexible second polymeric material composed substantially of flexible molecular chains and comprising at least one member selected from the group consisting of polyacrylonitrile and copolymers thereof; nylons 6, 66, 610 and 12; polyethylene terephthalate; poly-butylene terephthalate; polyethylene terephthalate-polybutylene terephthalate block copolymer; polyethylene terephthalate-polytetraemethylene glycol block copolymer; polyethylene terephthalate-polyethylene glycol block copolymer; polyurethane; segmented polyurethanes; polyethylene; polypropylene; polybutene; ethylene-propylene copolymer; polycarbonate; polyacetals; polysulfones; polyvinyl chloride and copolymers thereof; polyvinylidene chloride and derivatives thereof; polymethyl methacrylates; acrylate copolymer elastic materials; polystyrene; acrylonitrilestyrene copolymer; acrylonitrile-styrene-butadiene copolymer; polyvinyl acetates; polyvinyl formal; polyvinyl acetal; polyvinyl butyral; ethylene-vinyl acetate copolymers; ethyleneacrylate copolymers and hydrolyzed products thereof; polyvinyl alcohols; and styrene-butadiene block copolymers, wherein said first rigid polymeric material is present is an amount of 20% or less based on the total weight of polymeric material in said composite and said first material is uniformly dispersed in said second polymeric material in a microscope region of 1 μm or less.
Claim 3
Dependent Claim
20 words
The polymeric composite material of claim 1, wherein said first rigid polymeric material has a Mark-Houwink index greater than unity.
Claim 4
Dependent Claim
17 words
The polymeric composite material of claim 1, wherein said first rigid polymeric material is an N-substituted nylon-1.
Claim 5
Dependent Claim
20 words
The polymeric composite material of claim 1, wherein said first rigid polymeric material is a poly(spiro2,4-hepta-4,6-diene) and hydrogenated derivatives thereof.
Claim 6
Dependent Claim
16 words
The polymeric composite material of claim 1, wherein said first rigid polymeric material is poly(terephthaloyl-p-amino benzoylhydrazide).
Claim 7
Dependent Claim
16 words
The polymeric composite material of claim 1, wherein said first rigid polymeric material is a poly-p-phenylene.
Claim 8
Dependent Claim
21 words
The polymeric composite material of claim 1, wherein said second flexible polymeric material has a Mark-Houwink index of 0.9 or less.
Claim 9
Dependent Claim
20 words
The polymeric composite material of claim 1, wherein said second flexible polymeric material has a molecular weight greater than 8,000.
Claim 10
Dependent Claim
37 words
The polymeric composite material of claim 1, wherein said second polymeric material is a member selected from the group consisting of polyacrylonitrile, polyvinyl chloride, polymethyl methacrylate, polystyrene, polyvinyl acetate, polyvinyl acetal, polyethylene, polypropylene, polybutene, and copolymers thereof.
Claim 11
Dependent Claim
31 words
The polymeric composition material of claim 1, wherein said second flexible polymeric material is a member selected from the group consisting of a polyurethane, a polycarbonate, a polyacetal, and a polysulfone.
Claim 12
Dependent Claim
43 words
The polymeric composite material of claim 1, wherein said second polymeric material comprises at least one member selected from the group consisting of polyacrylonitrile, polyvinyl chloride, polymethyl methacrylate, polystyrene, polyvinyl acetate, polyvinyl acetal, polyethylene, polypropylene, polybutene, polyurethane, polycarbonate, polyacetal, polysulfone and copolymers thereof.
Claim 13
Dependent Claim
27 words
The polymeric composite material of claim 1, wherein said first polymeric material is a straight chain aromatic polyamide having junction points at the p-position or derivatives thereof.
Claim 14
Dependent Claim
42 words
The polymeric composite material of claim 12 wherein said first rigid polymeric material is a poly(p-phenylene terephthalamide), a copolymer prepared by substituting a portion of poly(p-phenylene terephthalamide) with aromatic residues selected from the group consisting of 2,6-naphthalene and p,p'-biphenyl, or a poly-benzamide.
Claim 15
Dependent Claim
28 words
The polymeric composite material of claim 1, wherein said first rigid polymeric material is a straight chain aromatic polyester having junction points at the p-position or derivatives thereof.
Claim 16
Dependent Claim
34 words
The polymeric composite material of claim 14, wherein said aromatic polyester is a polyester prepared from terephthalic acid and a member selected from the group consisting of a halogenated hydroquinone, a methylhydroquinone and 2,6-dihydroxynaphthalene.
Claim 17
Dependent Claim
27 words
The polymeric composite material of claim 1, wherein said first rigid polymeric material is an aromatic poly-Schiff base having junction points in the p-position or derivatives thereof.
Claim 18
Dependent Claim
22 words
The polymeric composite material of claim 16, wherein said poly-Schiff base is a polyamide prepared from 2-methyl-p-phenylenediamine and terephthalaldehyde and copolymers thereof.
Claim 19
Dependent Claim
33 words
The polymeric composite material of claim 1, wherein said first rigid polymeric material is modified such that the rigid polymeric material can be maintained in a dispersed state in said second polymeric material.
Claim 20
Dependent Claim
39 words
The polymeric composite material of claim 18, wherein said first rigid polymeric material is modified such that the molecular chains of said second polymeric material are incorporated in said first rigid polymeric material as a graft-type or block-type polymer.
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) | 1983-10-14 | 1984-04-14 | 1984-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-10-14 | 1988-04-14 | 1988-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-10-14 | 1992-04-14 | 1992-10-14 | $7700.00 | Window Closed / Lapsed |