GB756774A - Improvements in or relating to copolymers suitable for filters permeable to infra-red light - Google Patents

Improvements in or relating to copolymers suitable for filters permeable to infra-red light

Info

Publication number
GB756774A
GB756774A GB10848/54A GB1084854A GB756774A GB 756774 A GB756774 A GB 756774A GB 10848/54 A GB10848/54 A GB 10848/54A GB 1084854 A GB1084854 A GB 1084854A GB 756774 A GB756774 A GB 756774A
Authority
GB
United Kingdom
Prior art keywords
copolymer
infra
red light
permeable
chloride
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
GB10848/54A
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 and Haas GmbH
Original Assignee
Roehm and Haas GmbH
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 and Haas GmbH filed Critical Roehm and Haas GmbH
Publication of GB756774A publication Critical patent/GB756774A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00—Photosensitive materials
    • G03C1/76—Photosensitive materials characterised by the base or auxiliary layers
    • G03C1/825—Photosensitive materials characterised by the base or auxiliary layers characterised by antireflection means or visible-light filtering means, e.g. antihalation
    • G03C1/835—Macromolecular substances therefor, e.g. mordants
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Health & Medical Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

A copolymer of acrylonitrile and one or more other polymerizable compounds is heat-discoloured to such an extent that it is more permeable to infra-red light of a wavelength from 1000 to 3600 mm than to visible light, e.g. by heating the copolymer to above 140 DEG C. until the desired degree of discolouration is obtained. The copolymer may contain a dyestuff which has a greater permeability for infra-red light than for visible light, and which is introduced into the monomeric ingredients of the copolymer before copolymerization is effected. The copolymer may also contain various substances capable of intensifying the discolouration during heating, and which may be added to the copolymer before, during, or after polymerization. Substances mentioned are hydrochloric, phosphoric, sulphuric and trichloracetic acids and salts such as zinc chloride, iron chloride, aluminium chloride, alkalis such as alcoholic potash lye, hydrogen peroxide, benzoyl peroxide, pyridine, and azodiisobutyronitrile. Specified other polymerizable compounds are methyl methacrylate, styrene, vinyl acetate, and vinylidene chloride. The copolymer in the form of plates may be used as filters permeable to infra-red light. Specification 727,827 is referred to.
GB10848/54A 1953-04-13 1954-04-13 Improvements in or relating to copolymers suitable for filters permeable to infra-red light Expired GB756774A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE756774X 1953-04-13

Publications (1)

Publication Number Publication Date
GB756774A true GB756774A (en) 1956-09-12

Family

ID=6659892

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10848/54A Expired GB756774A (en) 1953-04-13 1954-04-13 Improvements in or relating to copolymers suitable for filters permeable to infra-red light

Country Status (1)

Country Link
GB (1) GB756774A (en)

Similar Documents

Publication Publication Date Title
DK143406C (en) AUTOCLAVE FOR PREPARING HOMO AND COPOLYMERS OF VINYL CHLORIDE BY MASS POLYMERIZATION
GB1088970A (en) 2-hydroxy-4-acryloxyethoxybenzophenones and derivatives thereof
USRE24164E (en) Quaternary ammonium polymers
GB605517A (en) A process for the manufacture of co-polymerisation products
ZA751494B (en) Emulsion polymerization of acrylate or other vinyl monomers
NO142751C (en) PROCEDURE FOR THE PREPARATION OF POLYVINYL CHLORIDE, POLYVINYLIDE CHLORIDE OR COPOLYMERS OF VINYL CHLORIDE OR VINYLIDE CHLORIDE WITH UP TO 30% BY WEIGHT OF OTHER OLEPHINICALLY Saturated MONOMERS
GB1414714A (en) Polymerization of vinyl chloride in aqueous suspension
GB756774A (en) Improvements in or relating to copolymers suitable for filters permeable to infra-red light
GB1027497A (en) Process for the manufacture of graft copolymers
JPS56145907A (en) Production of methacrylic resin having excellent heat distorsion resistance
DK126507B (en) Process for the preparation of foams from polymers or copolymers of tert-butyl acrylate or tert-butyl methacrylate.
JPS575703A (en) Suspension polymerization of vinyl chloride monomer
SE319607B (en)
SE7601585L (en) WAY TO AVOID POLLYMERIZATION REACTIONS IN POLYMERIZATION
GB1415060A (en) Method for polymerizing n-alkyl-n-arylaminoethyl esters of acrylic acid and acrylic acid derivatives
GB801824A (en) Improvements in or relating to artificial teeth and dentures made therefrom
JPS57133105A (en) Suspension polymerization of vinyl chloride
US2857322A (en) Photopolymerization of acrylonitrile
SE7610123L (en) PROCEDURE FOR FINISHING VINYL CHLORIDE POLYMERS
FI44945C (en) A process for producing wood containing a synthetic polymer by means of a catalyst and heat
GB612331A (en) Process for polymerising polymerisable substances in the form of an emulsion
GB708124A (en) Colouration process
SU122871A3 (en) The method of obtaining the net polymerization products
SE7511617L (en) PROCEDURE FOR STOPPING POLYMERIZATION OF VINYL CHLORIDE IN AQUATIC DISPERSION
SU116349A1 (en) The method of radiation polymerization of monomers