中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

126 records (took 0.023 seconds)

    61.
    发明专利
    未知

    公开(公告)号：DE3540118A1

    公开(公告)日：1987-05-14

    申请号：DE3540118

    申请日：1985-11-13

    Applicant: BASF AG

    Inventor： TAUBITZ CHRISTOF DR ,  SEILER ERHARD DR ,  SCHLEMMER LOTHAR

    IPC: C08F283/08 ,  C08F12/08 ,  C08F22/02 ,  C08L51/08 ,  C08J5/18 ,  C09D3/48 ,  C09J3/00

    Abstract: A process for the preparation of modified polyphenylene ether resins by grafting fumaric acid, preferably at from 270 DEG to 350 DEG C., onto polyphenylene ethers which are mixed with vinylaromatic polymers, and modified polyphenylene ether resins consisting of from 4.95 to 95 parts by weight of polyphenylene ether, from 95 to 4.95 parts by weight of vinylaromatic polymer and from 0.05 to 10 parts by weight of grafted fumaric acid.

    Paper pulp sizing - with aq dispersions contg reactive monomer with no salts
    67.
    发明专利
    Paper pulp sizing - with aq dispersions contg reactive monomer with no salts 未知

    公开(公告)号：DE2241129A1

    公开(公告)日：1974-03-21

    申请号：DE2241129

    申请日：1972-08-22

    Applicant: BASF AG

    Inventor： SCHARF EMIL DR ,  WENDEL KURT DR ,  TAUBITZ CHRISTOF DR ,  GUENDER WOLF DR

    IPC: D21H17/35 ,  D21H17/37 ,  D21H17/54 ,  D21H3/02

    Abstract: Paper fibres are bonded in absence of metallic salts at pH 5-9 pref. 6-8 using anionic polymer dispersions by polymsn. with a hydrophobic monomer in aq. medium in presence of emulsifiers contng. COOH gps., where the dispersions contain particles of mean size 200 nm and having Tg. 70 degrees C. Monomers are e.g. (meth)acrylic acid esters with >3C alcohols, or vinyl aromatic cpds. Emulsifiers are salts of (iso) fatty acids or resinic acids and their hydrogenation/disproportionation products or ethylene or diene reacted with maleic acid derivs. The process prevents growth of algae and deposits of adhesive and foaming. Corrosion is also reduced because the soln. is at near neutral pH in absence of salts.

    69.
    发明专利
    未知

    公开(公告)号：DE3871420D1

    公开(公告)日：1992-07-02

    申请号：DE3871420

    申请日：1988-03-29

    Applicant: BASF AG

    Inventor： TAUBITZ CHRISTOF DR ,  SEILER ERHARD DR ,  BOEHLKE KLAUS DR ,  OSTERMAYER BERTRAM DR ,  GAUSEPOHL HERMANN DR

    IPC: C08G65/48 ,  C08L25/04 ,  C08L51/04 ,  C08L51/06 ,  C08L63/00 ,  C08L71/12

    Abstract: A thermoplastic moulding compsn. is obtd. by mixing, at 200-320 deg. C for 0.5-30 mins., (A) 2-95.99 pts. wt., w.r.t. A+B+C+D, of a modified polyphenylene ether prepd. from (a1) 70-99.95 wt.% of a polymer with at least 30 wt.% of a polyphenylene ether and at most 70% of a vinyl-aromatic polymer, (a2) 0.5-10% of (a21) a monomer contg. amide gps. and a polymerisable C=C bond, (a22) a monomer contg. lactam gps. and a polymerisable C=C bond, and/or (a23) an alpha,beta-unsatd. dicarbonyl cpd., and (a3) 0-20% of a comonomer which can react with (a) and/or (a2), (B) 2-95.99 pts. wt., w.r.t. A+B+C+D, of a thermoplastic copolymer from (b11) 30-90.9% of an 8-12C vinylaromatic hydrocarbon, (b12) 9-40% of a 3-6C ethylenically unsatd. nitrile monomer, (b13) 0.1-30% of a maleic acid deriv., or a copolymerisable ethylenically unsatd. monomer with (b14) an epoxy gp., (b15) an oxazoline gp., and/or (b16) an OH gp., and (b17) 0-30% of an ethylenically unsatd. monomer copolymerisable with (b11-B16), (C) 2-95.99 pts. wt., w.r.t. A+B+C+D+, of a graft copolymer from 30-90% of a butadiene and/or acrylaterubber with Tg below 0 deg. C as graft backbone, and 70-10% of copolymer (B), prepd. in presence of the graft backbone, as graft sheath, and (D) 0.01-10 pts. w.r.t. A+B+C+D, of a cpd. with at least 2OH, thiol, epoxy and/or amino gps.

    70.
    发明专利
    未知

    公开(公告)号：DE3871419D1

    公开(公告)日：1992-07-02

    申请号：DE3871419

    申请日：1988-03-29

    Applicant: BASF AG

    Inventor： TAUBITZ CHRISTOF DR ,  SEILER ERHARD DR ,  BOEHLKE KLAUS DR ,  OSTERMAYER BERTRAM DR ,  GAUSEPOHL HERMANN DR

    IPC: C08G65/48 ,  C08L33/20 ,  C08L51/06 ,  C08L55/02 ,  C08L67/00 ,  C08L71/12

    Abstract: Compsns. (I) claimed are obtainable by mixing at 200-320 deg. C for 0.5-30 minutes (A) 3-96.9 pts. (all pts. wt.), on (A) + (B) + (C), modified polyphenylene ether prepd. from (a1) 70-99.95% on (A), component contg., on (a1), at least 30% polyphenylene ether and at most 70% vinyl aromatic polymer (a2) 0.05-10%, on (A), amide gp.-contg. monomer (II) and/or lactam gp.-contg. monomer (III), (II) and (III) each having polymerisable double bond, and/or alpha, beta-unsatd. dicarbonyl cpd. (IV) (a3) 0-20%, on (A), other, non-vinyl aromatic comonomer reacting with (a1) under prepn. conditions (B) 3-96.9 pts., on (A) + (B) + (C), SAN, ABS, and/or ASA polymer (C) 0.1-30 pts., on (A) + (B) + (C), poly-epsilon caprolactone of wt. average mol. wt. 400-100,000 g/mol and/or polymer of structure (I) where r is such that wt. average mol. wt. is 400-100,000 g/mol., where sum of components under (A), (B) and (C) = 100 pts..

Patent Agency Ranking