GB694463A - Heat-sealable splicing tape resin and process for preparing same - Google Patents

Heat-sealable splicing tape resin and process for preparing same

Info

Publication number
GB694463A
GB694463A GB6873/51A GB687351A GB694463A GB 694463 A GB694463 A GB 694463A GB 6873/51 A GB6873/51 A GB 6873/51A GB 687351 A GB687351 A GB 687351A GB 694463 A GB694463 A GB 694463A
Authority
GB
United Kingdom
Prior art keywords
per cent
methanol
polyvinyl acetate
sealable
acetate
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
GB6873/51A
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.)
Shawinigan Chemicals Ltd
Original Assignee
Shawinigan Chemicals Ltd
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 Shawinigan Chemicals Ltd filed Critical Shawinigan Chemicals Ltd
Publication of GB694463A publication Critical patent/GB694463A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J131/00—Adhesives based on 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 acyloxy radical of a saturated carboxylic acid, of carbonic acid, or of a haloformic acid; Adhesives based on derivatives of such polymers
    • C09J131/02—Homopolymers or copolymers of esters of monocarboxylic acids
    • C09J131/04—Homopolymers or copolymers of vinyl acetate
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F8/00—Chemical modification by after-treatment
    • C08F8/12—Hydrolysis
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2666/00—Composition of polymers characterized by a further compound in the blend, being organic macromolecular compounds, natural resins, waxes or and bituminous materials, non-macromolecular organic substances, inorganic substances or characterized by their function in the composition
    • C08L2666/28—Non-macromolecular organic substances
    • C08L2666/34—Oxygen-containing compounds, including ammonium and metal salts

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • General Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

Polyvinyl acetate hydrolysed to not more than 55 per cent and soluble in methanol is made by the alcoholysis of polyvinyl acetate in the presence of excess methanol, an alkaline alcoholysis catalyst, e.g. sodium hydroxide, in an amount not more than 15 per cent of the stoichiometric equivalent of the polyvinyl acetate, and water in an amount between 6.7 and 20 per cent by weight of the whole reaction solution. If desired, methyl acetate may replace up to 20 per cent by weight of the methanol. Films may be cast from methanol solutions of the polyvinyl alcohol-acetate and if desired the solutions may contain a water-soluble plasticizer such as glycerine, monacetin, diacetin or glycol. The partially hydrolysed polyvinyl acetate may be used as an adhesive.
GB6873/51A 1950-03-25 1951-03-22 Heat-sealable splicing tape resin and process for preparing same Expired GB694463A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US694463XA 1950-03-25 1950-03-25

Publications (1)

Publication Number Publication Date
GB694463A true GB694463A (en) 1953-07-22

Family

ID=22089020

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6873/51A Expired GB694463A (en) 1950-03-25 1951-03-22 Heat-sealable splicing tape resin and process for preparing same

Country Status (1)

Country Link
GB (1) GB694463A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1231221A1 (en) * 2001-02-08 2002-08-14 Wacker Polymer Systems GmbH & Co. KG Process for the preparation of polyvinyl alcohol

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1231221A1 (en) * 2001-02-08 2002-08-14 Wacker Polymer Systems GmbH & Co. KG Process for the preparation of polyvinyl alcohol
US6576720B2 (en) 2001-02-08 2003-06-10 Wacker Polymer Systems Gmbh & Co. Kg Preparation of polyvinyl alcohol

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