UST959011I4 - Transparent high-impact polystyrene resins and their manufacture - Google Patents

Transparent high-impact polystyrene resins and their manufacture Download PDF

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Publication number
UST959011I4
UST959011I4 US05/686,626 US68662676A UST959011I4 US T959011 I4 UST959011 I4 US T959011I4 US 68662676 A US68662676 A US 68662676A US T959011 I4 UST959011 I4 US T959011I4
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US
United States
Prior art keywords
parts
transparent
weight
impact modifier
impact
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
US05/686,626
Inventor
Robert Clarence Smith
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Priority to US05/686,626 priority Critical patent/UST959011I4/en
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Publication of UST959011I4 publication Critical patent/UST959011I4/en
Pending legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L25/00—Compositions of, homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Compositions of derivatives of such polymers
    • C08L25/02—Homopolymers or copolymers of hydrocarbons
    • C08L25/04—Homopolymers or copolymers of styrene
    • C08L25/06—Polystyrene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L25/00—Compositions of, homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Compositions of derivatives of such polymers
    • C08L25/02—Homopolymers or copolymers of hydrocarbons
    • C08L25/04—Homopolymers or copolymers of styrene
    • C08L25/08—Copolymers of styrene
    • C08L25/10—Copolymers of styrene with conjugated dienes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L53/00—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
    • C08L53/02—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers of vinyl-aromatic monomers and conjugated dienes

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

a transparent, high impact resin is produced by blending from 15 to 50 parts by weight of an impact modifier with from 85 to 50 parts by weight of clear crystal polystyrene. The impact modifier is a copolymer of a conjugated diene of from 4 to 6 carbon atoms and styrene, containing from 50 to 80 parts of styrene and from 20 to 50 parts of the conjugated diene. Further, the impact modifier consists of randomized copolymers or multiblock copolymers, and the polydiene blocks contained therein are of substantially 40,000 to 60,000 molecular weight. Higher molecular weights than 60,000 in the polydiene blocks give resins which are not transparent, while lower molecular weights than 40,000 give impact resistance which is lower than desired. Blending can be done in any convenient manner, either in solvent solution or otherwise. The transparent products can be used in packaging applications requiring varying thicknesses, from films to rigid molded or cast containers.
US05/686,626 1975-03-13 1976-05-14 Transparent high-impact polystyrene resins and their manufacture Pending UST959011I4 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US05/686,626 UST959011I4 (en) 1975-03-13 1976-05-14 Transparent high-impact polystyrene resins and their manufacture

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US55803975A 1975-03-13 1975-03-13
US05/686,626 UST959011I4 (en) 1975-03-13 1976-05-14 Transparent high-impact polystyrene resins and their manufacture

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
US55803975A Continuation 1975-03-13 1975-03-13

Publications (1)

Publication Number Publication Date
UST959011I4 true UST959011I4 (en) 1977-06-07

Family

ID=27071607

Family Applications (1)

Application Number Title Priority Date Filing Date
US05/686,626 Pending UST959011I4 (en) 1975-03-13 1976-05-14 Transparent high-impact polystyrene resins and their manufacture

Country Status (1)

Country Link
US (1) UST959011I4 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4243766A (en) 1974-06-07 1981-01-06 General Electric Company Thermoplastic molding compositions of vinyl aromatic compound α,.beta.
US20030203142A1 (en) * 1999-04-23 2003-10-30 Schafer Michael P. Process for injection molding crystal polystyrene to form compact disc trays
CN114479297A (en) * 2021-12-29 2022-05-13 上海金发科技发展有限公司 High-impact-resistance wear-resistant transparent polystyrene composition and preparation method and application thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4243766A (en) 1974-06-07 1981-01-06 General Electric Company Thermoplastic molding compositions of vinyl aromatic compound α,.beta.
US20030203142A1 (en) * 1999-04-23 2003-10-30 Schafer Michael P. Process for injection molding crystal polystyrene to form compact disc trays
CN114479297A (en) * 2021-12-29 2022-05-13 上海金发科技发展有限公司 High-impact-resistance wear-resistant transparent polystyrene composition and preparation method and application thereof

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