3.
    发明专利
    未知

    公开(公告)号:PT97218B

    公开(公告)日:1998-07-31

    申请号:PT9721891

    申请日:1991-04-01

    Applicant: BASF AG

    Abstract: Copolymers suitable for use as temporary surface protection for two- or three-dimensional structures and as sizing agents are based on C1-C8-alkyl acrylates and/or methacrylates and are obtainable by free radical emulsion or solution polymerization of A) from 50 to 95% by weight of a C1-C8-alkyl acrylate or methacrylate, B) from 5 to 20% by weight of an unsaturated carboxylic acid or anhydride, C) from 0 to 20% by weight of further water-soluble comonomer, and D) from 0 to 10% by weight of other comonomer in the presence of E) from 2 to 60 parts by weight of a polyvinyl alcohol per 100 parts by weight of the monomer mixture of A) to D).

    4.
    发明专利
    未知

    公开(公告)号:FI891274A

    公开(公告)日:1989-09-18

    申请号:FI891274

    申请日:1989-03-17

    Applicant: BASF AG

    Abstract: The process involves… a) condensing aromatic dicarboxylic acids or esters thereof with at least one diol to give prepolymers having an acid number of from 2 to 8,… b) reacting the prepolymers with at least one molecular-weight-increasing compound, for example trimellitic anhydride, to give polyesters having acid numbers of from 40 to 60, and… c) dispersing the polyesters by adding aqueous mixtures of ammonia and amines in a molar ratio of from 10:1 to 1:10 to give a polyester melt which has a temperature in the range from 150 to 210 DEG C. … The polyester dispersions are used as sizes or sizing filament warp thread.

    6.
    发明专利
    未知

    公开(公告)号:FI891274A0

    公开(公告)日:1989-03-17

    申请号:FI891274

    申请日:1989-03-17

    Applicant: BASF AG

    Abstract: The process involves… a) condensing aromatic dicarboxylic acids or esters thereof with at least one diol to give prepolymers having an acid number of from 2 to 8,… b) reacting the prepolymers with at least one molecular-weight-increasing compound, for example trimellitic anhydride, to give polyesters having acid numbers of from 40 to 60, and… c) dispersing the polyesters by adding aqueous mixtures of ammonia and amines in a molar ratio of from 10:1 to 1:10 to give a polyester melt which has a temperature in the range from 150 to 210 DEG C. … The polyester dispersions are used as sizes or sizing filament warp thread.

    7.
    发明专利
    未知

    公开(公告)号:DK128189D0

    公开(公告)日:1989-03-16

    申请号:DK128189

    申请日:1989-03-16

    Applicant: BASF AG

    Abstract: The process involves… a) condensing aromatic dicarboxylic acids or esters thereof with at least one diol to give prepolymers having an acid number of from 2 to 8,… b) reacting the prepolymers with at least one molecular-weight-increasing compound, for example trimellitic anhydride, to give polyesters having acid numbers of from 40 to 60, and… c) dispersing the polyesters by adding aqueous mixtures of ammonia and amines in a molar ratio of from 10:1 to 1:10 to give a polyester melt which has a temperature in the range from 150 to 210 DEG C. … The polyester dispersions are used as sizes or sizing filament warp thread.

    9.
    发明专利
    未知

    公开(公告)号:DK128189A

    公开(公告)日:1989-09-18

    申请号:DK128189

    申请日:1989-03-16

    Applicant: BASF AG

    Abstract: The process involves… a) condensing aromatic dicarboxylic acids or esters thereof with at least one diol to give prepolymers having an acid number of from 2 to 8,… b) reacting the prepolymers with at least one molecular-weight-increasing compound, for example trimellitic anhydride, to give polyesters having acid numbers of from 40 to 60, and… c) dispersing the polyesters by adding aqueous mixtures of ammonia and amines in a molar ratio of from 10:1 to 1:10 to give a polyester melt which has a temperature in the range from 150 to 210 DEG C. … The polyester dispersions are used as sizes or sizing filament warp thread.

Patent Agency Ranking