GB1278721A - Photographic materials - Google Patents

Photographic materials

Info

Publication number
GB1278721A
GB1278721A GB04873/70A GB1487370A GB1278721A GB 1278721 A GB1278721 A GB 1278721A GB 04873/70 A GB04873/70 A GB 04873/70A GB 1487370 A GB1487370 A GB 1487370A GB 1278721 A GB1278721 A GB 1278721A
Authority
GB
United Kingdom
Prior art keywords
polymers
acrylamide
homopolymer
hydroxyethyl
acrylate
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
GB04873/70A
Inventor
David Philip Brust
Louis Morton Minsk
Edward Peter Abel
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.)
Eastman Kodak Co
Original Assignee
Eastman Kodak 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 Eastman Kodak Co filed Critical Eastman Kodak Co
Publication of GB1278721A publication Critical patent/GB1278721A/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
    • G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
    • G03C1/04—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein with macromolecular additives; with layer-forming substances
    • G03C1/053—Polymers obtained by reactions involving only carbon-to-carbon unsaturated bonds, e.g. vinyl polymers

Abstract

1278721 Polymers of N-trishydroxymethylmethyl acrylamide EASTMAN KODAK CO 26 March 1970 [2 April 1969] 14873/70 Heading C3P [Also in Division G2] Polymers and copolymers containing units of the formula in which R is H or CH 3 are obtained in water or water/alcohol -mixtures with a free radical catalyst. Photographic emulsions contain polymers as defined above. Suitable comonomers are those whose polymers increase the covering power of the silver halide, e.g. acrylamide, N-(2-hydroxyethyl) acrylamide, vinyl pyrrolidone or N- acrylylmorpholine; alternatively a homopolymer may be mixed with a homopolymer of such a monomer or with a polysaccharide e.g. dextran, poly (vinyl-#-hydroxyethyl carbamoylmethylcarbamate) or succinoylated polyvinylalcohol. The binder is gelatin or a mixture thereof with an acrylate/acrylic acid/ sulpho acrylic ester copolymer or acrylate/acrylic acid/acetoacetylester copolymer. The emulsions which may also contain sensitizers, hardeners, stabilizers, antifoggants, speed increasing materials or plasticizers are coated on to supports, particularly polyesters, and dried.
GB04873/70A 1969-04-02 1970-03-26 Photographic materials Expired GB1278721A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US81288269A 1969-04-02 1969-04-02

Publications (1)

Publication Number Publication Date
GB1278721A true GB1278721A (en) 1972-06-21

Family

ID=25210868

Family Applications (1)

Application Number Title Priority Date Filing Date
GB04873/70A Expired GB1278721A (en) 1969-04-02 1970-03-26 Photographic materials

Country Status (7)

Country Link
US (1) US3591387A (en)
JP (1) JPS4926133B1 (en)
BE (1) BE748266A (en)
CA (1) CA938154A (en)
DE (1) DE2015525A1 (en)
FR (1) FR2042746A5 (en)
GB (1) GB1278721A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2378808A1 (en) * 1977-01-28 1978-08-25 Mar Pha Etu Expl Marques NEW HYDROPHILIC COPOLYMERS BASED ON N- (TRIS (HYDROXY-METHYL) METHYL) ACRYLAMIDE OR N- (TRIS (HYDROXYMETHYL) METHYL) METHACRYLAMIDE, THEIR PREPARATION AND THEIR USE IN SEPARATION TECHNIQUES
DE3217020A1 (en) * 1982-05-06 1983-11-10 Agfa-Gevaert Ag, 5090 Leverkusen PHOTOGRAPHIC RECORDING MATERIAL
JPS6169061A (en) * 1984-09-12 1986-04-09 Fuji Photo Film Co Ltd Silver halide photosensitive material
US7479521B2 (en) * 2001-10-17 2009-01-20 Societe D'exploitation De Produits Pour Les Industries Chimiques (Seppic) Tris(hydroxymethyl) acrylamidomethane polymer, inverse latex and microlatex containing same, use of said polymer, inverse latex and microlatex

Also Published As

Publication number Publication date
JPS4926133B1 (en) 1974-07-06
BE748266A (en) 1970-08-31
FR2042746A5 (en) 1971-02-12
US3591387A (en) 1971-07-06
CA938154A (en) 1973-12-11
DE2015525A1 (en) 1970-11-05

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees