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US4600748A Expired / Lapsed US ⏱️ 0.0 years remaining

Polyolefin composition

Assignee: Mitsui Toatsu Chemicals Inc
•
Filing: 1985-02-26
•
Granted: 1986-07-15
•
Expires: 2005-02-26
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Abstract

Abstract A polyolefin composition comprising 100 parts by weight of polyolefin, not less than 0.5 part by weight of a polyamide selected from the group consisting of nylon 6 and nylon 66, and from 3 to 30 percent by weight of novolak based on the weight of the polyamide; and a method of making polyolefin molded articles having surface improved in secondary processable property, which is characterized by treating the surface of molded articles of the polyolefin composition with a solution comprising: (a) not less than 2 percent by weight of a monomer having at least one carbon-carbon double bond and a glycidyl group, (b) 1 to 5 percent by weight of chlorinated polyolefin, and (c) not more than 97 percent by weight of a mixed solvent of 30 to 70 percent by weight of terpenic solvent and 70 to 30 percent by weight of aromatic or chlorinated hydrocarbon solvent.

Inventors

  • 👤 Kaneyuki Takagi
  • 👤 Yoichi Kawai
  • 👤 Yoshiyasu Kamiya

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 12:47
CPC Classifications
C; C08; C08L; C08L23/00; C08L23/02; C08J; C08J7/00; C08J7/04; C08J7/0427; C08J7/043; C08J7/044; C08J7/052; C08L23/04; C08L23/06; C08L23/10; C09; C09D; C09D123/00; C09D123/26; C09D123/28; C08J2323/00; C08J2323/02; C08J2451/00; C08L2205/00; C08L2205/03; C08L61/00; C08L61/04; C08L61/06; C08L77/00

Claims Analysis

Total Claims: 13
Claim 1
Independent Claim 49 words
A polyolefin composition comprising: 100 parts by weight of polyolefin, not less than 0.5 part by weight of a polyamide selected from the group consisting of nylon 6 and nylon 66, and from 3 to 30 percent by weight of a novolak based on the weight of the polyamide.
Claim 2
Dependent Claim 49 words
A polyolefin composition comprising: 100 parts by weight of polyolefin, not less than 0.5 part by weight of a polyamide selected from the group consisting of nylon 6 and nylon 66, and from 3 to 30 percent by weight of a novolak based on the weight of the polyamide.
Claim 3
Dependent Claim 11 words
The polyolefin composition of claim 1, wherein said polyolefin is polypropylene.
Claim 4
Dependent Claim 12 words
The polyolefin composition of claim 1, wherein said polyamide is nylon 6.
Claim 5
Dependent Claim 12 words
The polyolefin composition of claim 1, wherein said polyamide is nylon 66.
Claim 6
Dependent Claim 12 words
The polyolefin composition of claim 1, wherein said novolak is phenolic novolak.
Claim 7
Dependent Claim 14 words
The polyolefin composition of claim 1, wherein said novolak is a terpene phenolic novolak.
Claim 8
Dependent Claim 19 words
The polyolefin composition of claim 1, wherein said polyolefin is a homopolymer of an α-olefin having 2-6 carbon atoms.
Claim 9
Dependent Claim 18 words
The polyolefin composition of claim 7 wherein said homopolymer is a polymer of ethylene, propylene, butylene or methylpentene.
Claim 10
Dependent Claim 24 words
The polyolefin composition of claim 1, wherein said polyolefin is a copolymer of an α-olefin and vinyl acetate or acrylic ester as a comonomer.
Claim 11
Dependent Claim 26 words
The polyolefin composition of claim 1, wherein said novolak is prepared from a monohydric phenol which is phenol, cresol, p-tert-butyl phenol, p-phenyl phenol or terpene phenol.
Claim 12
Dependent Claim 20 words
The polyolefin of claim 1, wherein the amount of said novolak component in said composition ranges from 10-20 weight %.
Claim 13
Dependent Claim 30 words
The polyolefin composition of claim 1, which further comprises at least one additive selected from the group consisting of stabilizers, polymers, antistatic agents, fire-retardants, colorants, inorganic fillers and organic fillers.

References Cited (Backward Citations)

US3928526A Cited
JPS5546662A Cited
JPS57195734A Cited
US4476277A Cited
JPS5950171A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1989-07-14 1990-01-13 1990-07-15 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1993-07-14 1994-01-13 1994-07-15 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1997-07-14 1998-01-13 1998-07-15 $7700.00 Window Closed / Lapsed

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