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US4116897A Expired / Lapsed US ⏱️ 0.0 years remaining

Compounded plastic system

Assignee: Tiszai Vegy Kombinat
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Filing: 1976-10-01
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Granted: 1978-09-26
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Expires: 1996-10-01
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Abstract

Abstract A compounded plastic system containing 3 to 90% by weight of a crystalline polyolefine, 0.4 to 80% by weight of a non-crystalline polyolefine, 25 to 90% by weight of a pigment and/or filling agent, 0.5 to 10% by weight of surfactants, and optionally other polymers, wherein the system contains two surfactants of different HLB-values, the one surfactant having a HLB-value lower than 9 and the other surfactant having a HLB-value higher than 9, both surfactants being heat-resistant up to at least 160° C. The compounded plastic system according to the invention retains the properties of the starting system even when admixed with widely varying amounts of filling agents, and even more, in certain respects it possesses improved characteristics.

Inventors

  • 👤 Andor Huszar
  • 👤 Geza Szekely
  • 👤 Istan Rusznak
  • 👤 Lajos Trezl
  • 👤 Gyorgy Bertalan
  • 👤 Ilona Zaoui nee Serfozo
  • 👤 Imre Molnar

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 13:55
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/0008; C08K5/0016

Claims Analysis

Total Claims: 3
Claim 1
Independent Claim 86 words
In a compounded plastic system containing 3 to 90% by weight of a crystalline polyolefine, 0.4 to 80% by weight of a non-crystalline polyolefine, 25 to 90% by weight of a pigment and/or filling agent, 0.5 to 10% by weight of surfactants, and optionally other polymers, the improvement that the system contains two surfactants of different HLB-values, the one surfactant having a HLB-value lower than 9 and the other surfactant having a HLB-value higher than 9, both surfactants being heat-resistant up to at least 160° C.
Claim 2
Dependent Claim 86 words
In a compounded plastic system containing 3 to 90% by weight of a crystalline polyolefine, 0.4 to 80% by weight of a non-crystalline polyolefine, 25 to 90% by weight of a pigment and/or filling agent, 0.5 to 10% by weight of surfactants, and optionally other polymers, the improvement that the system contains two surfactants of different HLB-values, the one surfactant having a HLB-value lower than 9 and the other surfactant having a HLB-value higher than 9, both surfactants being heat-resistant up to at least 160° C.
Claim 3
Dependent Claim 54 words
A compounded plastic system as claimed in claim 1, in which the non-crystalline polyolefine is selected from the group consisting of polyisobutylene having a molecular weight ranging from 10,000 to 1,500,000, atactic polypropylene having a molecular weight ranging from 5,000 to 150,000 and high-pressure polyethylene having a molecular weight ranging from 1,000 to 70,000.

References Cited (Backward Citations)

US2777008A Cited
US3865779A Cited
US3767444A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1981-09-25 1982-03-27 1982-09-26 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1985-09-25 1986-03-27 1986-09-26 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1989-09-25 1990-03-27 1990-09-26 $7700.00 Window Closed / Lapsed

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