GB1504853A - Sizing - Google Patents

Sizing

Info

Publication number
GB1504853A
GB1504853A GB8777/74A GB877774A GB1504853A GB 1504853 A GB1504853 A GB 1504853A GB 8777/74 A GB8777/74 A GB 8777/74A GB 877774 A GB877774 A GB 877774A GB 1504853 A GB1504853 A GB 1504853A
Authority
GB
United Kingdom
Prior art keywords
weight
stabiliser
copolymer
ketene dimer
formula
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
GB8777/74A
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.)
Ciba Specialty Chemicals Water Treatments Ltd
Original Assignee
Allied Colloids 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 Allied Colloids Ltd filed Critical Allied Colloids Ltd
Priority to GB8777/74A priority Critical patent/GB1504853A/en
Publication of GB1504853A publication Critical patent/GB1504853A/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/03—Non-macromolecular organic compounds
    • D21H17/05—Non-macromolecular organic compounds containing elements other than carbon and hydrogen only
    • D21H17/17—Ketenes, e.g. ketene dimers

Landscapes

  • Compositions Of Macromolecular Compounds (AREA)

Abstract

1504853 Sizing composition; sizing paper ALLIED COLLOIDS Ltd 20 May 1975 [27 Feb 1974] 8777/74 Headings DIP and D2B [Also in Divisions B1 and B2] A paper sizing composition is an aqueous dispersion containing a ketene dimer and a cationic polymeric dispersion stabiliser of specified formula. The ketene dimer has the formula: wherein R 1 and R 2 are the same or different and each represents an alkyl radical of at least 12C, and may be derived from e.g. palmitic, stearic, oleic or myristic acid or a mixture thereof. The stabiliser contains at least 10% by weight of recurring units derived from monomers of the formula I: wherein R 3 , R 4 and R 5 which may be the same or different are H or alkyl (1-4C), R 6 is H or methyl, A is alkylene (1-4C) and X is an anion. The copolymer may contain free, primary or secondary amino groups. The stabiliser may have a Brookfield viscosity of 200-2,000cps. The dispersion may be a liquidliquid emulsion or a solid dispersed in a liquid. The compositions may be used to size paper internally e.g. in the form of 1% consistency bleached sulphate pulp containing 20% calcium carbonate or externally in the form of hand sheets prepared from such pulp. In examples, the compositions comprises a homogenised aqueous emulsion of a stearyl ketene dimer stabilised with (1) a polymer derived from di-isobutyl amino ethyl acrylate quaternised with dimethyl sulphate (viscosity 1300cps), (2) a copolymer containing free amino groups and obtained by copolymerising diethyl amino ethyl methacrylate quaternised with methyl chloride and N-methylol acrylamide (95:5 by weight) and modified by reaction with melamine and (3) a copolymer of diethyl amino ethyl methacrylate quaternised with methyl chloride and N-methylol acrylamide (10:90 by weight) modified by reaction with melamine (10:130.5 by weight).
GB8777/74A 1975-05-20 1975-05-20 Sizing Expired GB1504853A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8777/74A GB1504853A (en) 1975-05-20 1975-05-20 Sizing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8777/74A GB1504853A (en) 1975-05-20 1975-05-20 Sizing

Publications (1)

Publication Number Publication Date
GB1504853A true GB1504853A (en) 1978-03-22

Family

ID=9859079

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8777/74A Expired GB1504853A (en) 1975-05-20 1975-05-20 Sizing

Country Status (1)

Country Link
GB (1) GB1504853A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4243481A (en) * 1977-08-19 1981-01-06 Hercules Incorporated Sizing compositions
US4317756A (en) 1977-08-19 1982-03-02 Hercules Incorporated Sizing composition comprising a hydrophobic cellulose-reactive sizing agent and a cationic polymer
EP0085330A1 (en) * 1982-01-30 1983-08-10 Bayer Ag Sizing agent and its use
US6123760A (en) * 1998-10-28 2000-09-26 Hercules Incorporated Compositions and methods for preparing dispersions and methods for using the dispersions
US6414055B1 (en) 2000-04-25 2002-07-02 Hercules Incorporated Method for preparing aqueous size composition

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4243481A (en) * 1977-08-19 1981-01-06 Hercules Incorporated Sizing compositions
US4317756A (en) 1977-08-19 1982-03-02 Hercules Incorporated Sizing composition comprising a hydrophobic cellulose-reactive sizing agent and a cationic polymer
EP0085330A1 (en) * 1982-01-30 1983-08-10 Bayer Ag Sizing agent and its use
US6123760A (en) * 1998-10-28 2000-09-26 Hercules Incorporated Compositions and methods for preparing dispersions and methods for using the dispersions
US6414055B1 (en) 2000-04-25 2002-07-02 Hercules Incorporated Method for preparing aqueous size composition

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee