GB596005A - Coating of solid organic polymers with polysilicic acid esters - Google Patents

Coating of solid organic polymers with polysilicic acid esters

Info

Publication number
GB596005A
GB596005A GB17933/45A GB1793345A GB596005A GB 596005 A GB596005 A GB 596005A GB 17933/45 A GB17933/45 A GB 17933/45A GB 1793345 A GB1793345 A GB 1793345A GB 596005 A GB596005 A GB 596005A
Authority
GB
United Kingdom
Prior art keywords
acid
per cent
hydroxyl
coating
specified
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
GB17933/45A
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
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 EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Publication of GB596005A publication Critical patent/GB596005A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00—Producing optical elements, e.g. lenses or prisms
    • B29D11/00865—Applying coatings; tinting; colouring
    • 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
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • C08J7/0427—Coating with only one layer of a composition containing a polymer binder
    • 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
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • C08J7/043—Improving the adhesiveness of the coatings per se, e.g. forming primers
    • 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
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • C08J7/044—Forming conductive coatings; Forming coatings having anti-static properties
    • 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
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • C08J7/046—Forming abrasion-resistant coatings; Forming surface-hardening coatings
    • 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
    • C08J2333/00—Characterised by the use 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; Derivatives of such polymers
    • C08J2333/04—Characterised by the use 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; Derivatives of such polymers esters
    • C08J2333/06—Characterised by the use 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; Derivatives of such polymers esters of esters containing only carbon, hydrogen, and oxygen, the oxygen atom being present only as part of the carboxyl radical
    • C08J2333/10—Homopolymers or copolymers of methacrylic acid esters
    • C08J2333/12—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)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Ophthalmology & Optometry (AREA)
  • Mechanical Engineering (AREA)
  • Paints Or Removers (AREA)

Abstract

Solid organic polymers, prepared by the interpolymerisation of a compound containing only one CH2=CH-group with a minor proportion of a compound containing a plurality of CH2=CH-groups, are coated with a solution comprising an acid polysilicic acid ester and a hydroxyl-containing polymer. Specified copolymers, which are preferably transparent, are those of methyl methacrylate or styrene with methacrylic anhydride, preferably containing less than 7 per cent. of the anhydride, and the specified hydroxyl-containing polymers are polyvinyl alcohol, partial polyvinyl acetates and cellulose esters and ethers. Volatile solvents may also be present It is preferred that the solution contains at least 20 per cent. of its weight of either ethyl, propyl or butyl alcohol, while 1 to 50 per cent. of carboxylic acid containing 2 to 5 carbon atoms per molecule, e.g., acetic acid, may be present. The preparation of the esters is described (see Group IV). After coating, the material is baked and cooled. The material may be used for enclosing galvanometers, voltmeters and aircraft instruments. Specification 581,751 is referred to.ALSO:Solid organic polymers, prepared by the interpolymerization of a compound containing only one CH2=CH-group with a minor proportion of a compound containing a plurality of CH2=CH- groups, are coated with a solution comprising an acid polysilicic acid ester and a hydroxyl-containing polymer. Specified copolymers, which are preferably transparent, are those of methyl methacrylate or styrene with methacrylic anhydride preferably containing less than 7 per cent of the anhydride, and the specified hydroxyl-containing polymers are polyvinyl alcohol, partial polyvinyl acetals and cellulose esters and ethers. Volatile solvents may also be present. It is preferred that the solution contains at least 20 per cent of its weight of either ethyl, propyl or butyl alcohol, while 1 to 50 per cent of a carboxylic acid containing 2-5 carbon atoms per molecule, e.g. acetic acid, may be present. The acid esters may be prepared by acidifying an aqueous sodium silicate, contacting with an esterifying agent and removing water, e.g. tetraethylsilicate is hydrolysed and polymerized by stirring with ethanol and hydrochloric acid. The alcohol from which the ester is formed may be primary, secondary or tertiary, aliphatic, aromatic, cyclic alicyclic, mono or polyhydric, saturated, unsaturated and straight or branch chain. Preferred alcohols boil below 120 DEG C. After coating, the material is baked and cooled and may be used for enclosing voltmeters, galvanometers and aircraft instruments. Specification 581,751 is referred to.
GB17933/45A 1944-07-15 1945-07-13 Coating of solid organic polymers with polysilicic acid esters Expired GB596005A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US596005XA 1944-07-15 1944-07-15

Publications (1)

Publication Number Publication Date
GB596005A true GB596005A (en) 1947-12-24

Family

ID=22024024

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17933/45A Expired GB596005A (en) 1944-07-15 1945-07-13 Coating of solid organic polymers with polysilicic acid esters

Country Status (1)

Country Link
GB (1) GB596005A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1985005317A1 (en) * 1984-05-24 1985-12-05 University Of Strathclyde Coating material for lenses

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1985005317A1 (en) * 1984-05-24 1985-12-05 University Of Strathclyde Coating material for lenses

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