GB1365581A - Additives for polyvinyl chloride moulding materials - Google Patents

Additives for polyvinyl chloride moulding materials

Info

Publication number
GB1365581A
GB1365581A GB169972A GB169972A GB1365581A GB 1365581 A GB1365581 A GB 1365581A GB 169972 A GB169972 A GB 169972A GB 169972 A GB169972 A GB 169972A GB 1365581 A GB1365581 A GB 1365581A
Authority
GB
United Kingdom
Prior art keywords
copolymer
polyvinyl chloride
weight
additives
emulsion
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.)
Expired
Application number
GB169972A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Roehm GmbH Darmstadt
Original Assignee
Roehm GmbH Darmstadt
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
Application filed by Roehm GmbH Darmstadt filed Critical Roehm GmbH Darmstadt
Publication of GB1365581A publication Critical patent/GB1365581A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L27/00—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 a halogen; Compositions of derivatives of such polymers
    • C08L27/02—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 a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L27/04—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 a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
    • C08L27/06—Homopolymers or copolymers of vinyl chloride
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
    • C08L33/04—Homopolymers or copolymers of esters
    • C08L33/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, which oxygen atoms are present only as part of the carboxyl radical
    • C08L33/10—Homopolymers or copolymers of methacrylic acid esters
    • C08L33/12—Homopolymers or copolymers of methyl methacrylate

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

1365581 Polymeric additives for polyvinyl Chloride ROHM GmbH 13 Jan 1972 [15 Jan 1971] 1699/72 Heading C3P Additives for polyvinyl chloride moulding materials comprise an emulsion copolymer containing 70-95% by weight of units of methyl methacrylate and 5-30% by weight of at least one comonomer which, when polymerized alone, forms a " soft " homopolymer (i.e. has a Tg below 20‹ C.), the copolymer being in the form of a granulate whose granules consist of loosely aggregated fine particles. (The granules are distinguished from conventional bead polymer particles and are characterized by having a crumbly structure and being friable.) Suitable comonomers are esters of acrylic acid, and also methacrylate esters of alcohols having at least 4 carbon atoms; acrylates of C 1 to C 4 alcohols are preferred, particularly ethyl acrylate. The copolymer granulate is obtained by dehydrating an aqueous dispersion of the emulsion copolymer at a temperature such that no fusing or sintering of the copolymer particles occurs. Dehydration can be effected by evaporating the dispersion, e.g. in a thin layer, in a drying oven or on a roller, or preferably by spray-drying; dehydration can also be achieved by coagulating the dispersion, e.g. by electrolyte addition, and filtering off the coagulate. The copolymer additive of the invention is generally added to bulk, suspension or emulsion P.V.C. in an amount of 0À5-10% by weight (based on the total amount of P.V.C. and additive) to provide a moulding material. Fillers, stabilizers, lubricants and/or dyes may also be included.
GB169972A 1971-01-15 1972-01-13 Additives for polyvinyl chloride moulding materials Expired GB1365581A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712101808 DE2101808C2 (en) 1971-01-15 1971-01-15 Processing aid for rigid PVC molding compounds

Publications (1)

Publication Number Publication Date
GB1365581A true GB1365581A (en) 1974-09-04

Family

ID=5796011

Family Applications (1)

Application Number Title Priority Date Filing Date
GB169972A Expired GB1365581A (en) 1971-01-15 1972-01-13 Additives for polyvinyl chloride moulding materials

Country Status (4)

Country Link
DE (1) DE2101808C2 (en)
FR (1) FR2122182A5 (en)
GB (1) GB1365581A (en)
IT (1) IT943378B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4892910A (en) * 1987-07-17 1990-01-09 GmbH Rohm Polymer powders of low fines content and method for making the same by spray drying

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3405651A1 (en) * 1984-02-17 1985-08-22 Röhm GmbH, 6100 Darmstadt POWDERED EMULSION POLYMERISATES AND METHOD FOR THE PRODUCTION THEREOF

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR883939A (en) * 1940-07-26 1943-07-26 Ig Farbenindustrie Ag Powders capable of being dispersed in water and process for their preparation
NL293879A (en) * 1963-01-03
CH556377A (en) * 1969-03-18 1974-11-29 Degussa PROCESS FOR THE PRODUCTION OF COATS ON MOLDED BODIES.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4892910A (en) * 1987-07-17 1990-01-09 GmbH Rohm Polymer powders of low fines content and method for making the same by spray drying

Also Published As

Publication number Publication date
IT943378B (en) 1973-04-02
DE2101808A1 (en) 1972-08-03
FR2122182A5 (en) 1972-08-25
DE2101808C2 (en) 1984-09-13

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years