中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

98 records (took 0.023 seconds)

    12.
    发明专利
    未知

    公开(公告)号：DE58902676D1

    公开(公告)日：1992-12-17

    申请号：DE58902676

    申请日：1989-08-16

    Applicant: BASF AG

    Inventor： REHMER GERD DR

    IPC: C08F265/04 ,  C09J4/02 ,  C09J4/06 ,  C09J201/00

    Abstract: The invention relates to a process for the preparation of radiation-crosslinkable contact adhesive mixtures comprising polymers having a glass transition temperature of below 0 DEG C and a K value of from 20 to 80, derivatives of dihydroxypropyl (meth)acrylates as reactive thinners and small amounts of polymerisable tertiary amino compounds, in which the mixture is heated at temperatures of from 80 to 120 DEG C for up to 2 hours, and the solvent is then removed, if necessary at reduced pressure.

    14.
    发明专利
    未知

    公开(公告)号：DE3930585A1

    公开(公告)日：1991-03-21

    申请号：DE3930585

    申请日：1989-09-13

    Applicant: BASF AG

    Inventor： REHMER GERD DR ,  RAU MARIA GYOPAR DR ,  WISTUBA ECKEHARDT DR ,  BAECHER REINHARD DR ,  MATTHAEI LOTHAR

    IPC: C08K3/00 ,  C08F2/22 ,  C08K5/07 ,  C08K5/132 ,  C08L31/02 ,  C08L31/04 ,  C08L33/04 ,  C08L33/06 ,  C09D131/02 ,  C09D131/04 ,  C09D133/06 ,  C09J131/02 ,  C09J131/04

    Abstract: Aqueous synthetic resin formulations essentially contain A) from 3 to 75% by weight of one or more synthetic resins which are composed of a) from 50 to 99.9% by weight of one or more unsaturated carboxylic or vinyl esters, b) from 0.1 to 12% by weight of one or more alpha , beta -monoethylenically unsaturated monobasic or dibasic acids or their ahydrides, c) from 0 to 10% by weight of one or more monoethylenically unsaturated acetophenone or benzophenone derivatives, d) from 0 to 35% by weight of one or more other copolymerizable monoethylenically unsaturated monomers, in polymerized form, B) one or more metal cations having a charge of from 2 to 4, in water-soluble form, C) from 0 to 10% by weight, based on the synthetic resin A, or benezophenones or acetophenones which are not monoethylenically unsaturated, D) effective amounts of emulsifiers or protective colloids or a mixture of these active ingredients, E) not less than 5% by weight of water and F) from 0 to 85% by weight of finely divided fillers, and the total amount of the cations B is such that it is capable of neutralizing from 0.2 to 6 times the amount, corresponding to the amount of acid functions incorporated in the form of the monomers b in the synthetic resin A, of their conjugated bases. These synthetic resin formulations are suitable for coating, adhesive bonding, sealing or impregnating.

    Synthetic resins, useful esp. as contact adhesives - has alkyl (meth)acrylate, unsatd. aceto- or benzophenone deriv. unsatd.- acid etc., with min 1 per cent of acid gps. neutralised
    15.
    发明专利
    Synthetic resins, useful esp. as contact adhesives - has alkyl (meth)acrylate, unsatd. aceto- or benzophenone deriv. unsatd.- acid etc., with min 1 per cent of acid gps. neutralised 未知

    公开(公告)号：DE3917881A1

    公开(公告)日：1990-12-06

    申请号：DE3917881

    申请日：1989-06-01

    Applicant: BASF AG

    Inventor： REHMER GERD DR ,  AUCHTER GERHARD DR ,  BOETTCHER ANDREAS DR

    IPC: C08F220/12 ,  C09J7/02 ,  C09J133/06

    Abstract: The new synthetic resins (I) consist of (a) 30-99.85 wt.% (1-18C alkyl)-(meth)acrylate(s), (b) 0.05-8 wt.% mono-unsatd. acetophenone or benzophenone deriv(s). contg. no Ph gp. with a free OH gp. ortho to the CO gp., (c) 0.1-10 wt.% 3-12C mono-unsatd., mono- or di-basic acid(s) and/or anhydride(s), (d) 0-50 wt.% vinyl 2-18C aliphatic monocarboxylate(s) and (e) 0-20 wt.% other mono-unsatd. comonomer(s) in polymerised form; at least 1 mol % of the acid and/or anhydride gps. incorporated with (c) is neutralised. (I) are produced by radical polymerisation of the above comonomer mixt. in organic soln., followed by partial or complete neutralisation of the acid/anhydride gps. and sepn. of the solvent and any other volatile components; or monomer (c) is partly or fully neutralised before copolymerisation with the other comonomers. (I) pref. contain 40-90 wt.% monomer (a), 0.1-5 wt.% (b) and 0.5-4 wt.% (c); (b) has the formula Ph-CO-Phe-OCO-(CH2)4-OCOCR3 =CH2 (II), Cl-Phe-CO-Phe-OCO-(CH2)2-OCOCR3=CH2 and/or Ph-CO-Phe-OCOO-Phe-NH-COCR3=CH2 (with R3 = H or Me); amts. of (a)-(e) are such that a copolymer of (a), (c), (d) and (e) only has T9 -50 to 0 deg.C; 40-60 mol % of the acid/anhydride gps. introduced with (c) are neutralised; the fully acid form of (I) has K-value 10-60 in THF at 25 deg.C; alkali metal hydroxide is used for neutralisation. USE/ADVANTAGE - (I) are useful as the basis for contact adhesives (claimed); also claimed is a self-adhesive article comprising a substrate material and a contact adhesive based on (I), and a process for the prodn. of such articles by coating the subtrate with (I) from soln. or melt and then irradiating with UV. W.r.t. prior-art systems, adhesives based on (I) have increased shear strength under static loading, esp. at elevated temp..

    16.
    发明专利
    未知

    公开(公告)号：DE3838031A1

    公开(公告)日：1990-05-10

    申请号：DE3838031

    申请日：1988-11-09

    Applicant: BASF AG

    Inventor： HORN PETER DR ,  REHMER GERD DR ,  LUTTER HEINZ-DIETER DR ,  RAMLOW GERHARD DR

    IPC: C08F216/14 ,  C08F218/10 ,  C08F220/28 ,  C08F220/58 ,  C08F222/20 ,  C08F226/00 ,  C08F226/06 ,  C08F290/06 ,  C08F299/02 ,  C08G18/40 ,  C08G18/62 ,  C08L75/04 ,  C09K23/52

    Abstract: The novel copolymers having K values of from 5 to 80 are prepared by free-radical polymerisation of A) 20 to 80% by weight, based on the total weight of (A) and (B), of at least one olefinically unsaturated polyoxyalkylene alcohol or polyester alcohol adduct, (B) 80 to 20% by weight, based on the total weight of (A) and (B), of at least one vinyl monomer from the group comprising N-vinylformamide, -2-pyrrolidone, -2-piperidone, -2-caprolactam, -imidazole, -2-ethyleneurea and -2-propyleneurea, C) 0 to 40 parts by weight of glycidyl acrylate and/or glycidyl methacrylate, D) 0 to 10 parts by weight of at least one alpha , beta -monoolefinically unsaturated acid and E) 0 to 30 parts by weight of at least one olefinically unsaturated carboxamide and/or carboxylate and/or styrene, the parts by weight of (C), (D) and (E) in each case being based on 100 parts by weight of the monomers (A) and (B). The copolymers are used as assistants and/or additives, for example as dispersion and/or emulsification assistants, or as additives for improving the mechanical properties, in formulations for the preparation of polyisocyanate polyaddition products.

    17.
    发明专利
    未知

    公开(公告)号：DE3838030A1

    公开(公告)日：1990-05-10

    申请号：DE3838030

    申请日：1988-11-09

    Applicant: BASF AG

    Inventor： HORN PETER DR ,  REHMER GERD DR ,  LUTTER HEINZ-DIETER DR ,  RAMLOW GERHARD DR ,  HINZ WERNER DR ,  SCHMIDT HANS ULRICH

    IPC: C08F216/14 ,  C08F218/10 ,  C08F220/28 ,  C08F220/58 ,  C08F222/20 ,  C08F226/00 ,  C08F226/06 ,  C08F290/06 ,  C08F299/02 ,  C08G18/40 ,  C08G18/62 ,  C08L75/04 ,  C09K23/52

    Abstract: The novel copolymers having K values of from 5 to 80 are prepared by free-radical polymerisation of A) 20 to 80% by weight, based on the total weight of (A) and (B), of at least one olefinically unsaturated polyoxyalkylene alcohol or polyester alcohol adduct, (B) 80 to 20% by weight, based on the total weight of (A) and (B), of at least one vinyl monomer from the group comprising N-vinylformamide, -2-pyrrolidone, -2-piperidone, -2-caprolactam, -imidazole, -2-ethyleneurea and -2-propyleneurea, C) 0.05 to 40 parts by weight of glycidyl acrylate and/or glycidyl methacrylate, D) 0 to 10 parts by weight of at least one alpha , beta -monoolefinically unsaturated acid and E) 0 to 30 parts by weight of at least one olefinically unsaturated carboxamide and/or carboxylate and/or styrene, the parts by weight of (C), (D) and (E) in each case being based on 100 parts by weight of the monomers (A) and (B). The copolymers are used as assistants and/or additives, for example as dispersion and/or emulsification assistants, or as additives for improving the mechanical properties, in formulations for the preparation of polyisocyanate polyaddition products.

    18.
    发明专利
    未知

    公开(公告)号：DE3817452A1

    公开(公告)日：1989-11-30

    申请号：DE3817452

    申请日：1988-05-21

    Applicant: BASF AG

    Inventor： REHMER GERD DR

    IPC: C09J7/02 ,  C08F2/46 ,  C08K5/07 ,  C09J133/00 ,  C09J133/04 ,  C09J133/06

    Abstract: This invention relates to hot-melt adhesives which can be crosslinked in air using UV light and are based on copolymers which contain, in copolymerised form, tetrahydrofurfuryl 2-(meth)acrylate and/or N-2-tetrahydrofurfuryl(meth)acrylamide and/or alkoxyalkyl (meth)acrylates and/or N-alkoxyalkyl(meth)acrylamides and added benzophenone and/or benzophenone derivatives as photosensitisers.

    19.
    发明专利
    未知

    公开(公告)号：DE3712017A1

    公开(公告)日：1988-10-27

    申请号：DE3712017

    申请日：1987-04-09

    Applicant: BASF AG

    Inventor： BLUM RAINER ,  REHMER GERD DR ,  OSTERLOH ROLF DR ,  SANDER HANS DR

    IPC: C08L33/00 ,  C08L51/00 ,  C08L63/00 ,  C08L51/06 ,  C08L33/02 ,  C09D3/58 ,  C09D3/81 ,  C09J3/16

    Abstract: Epoxy resin materials essentially contain (A) an epoxy resin having a mean molecular weight of from 300 to 6,000 and on average from 1.5 to 3.0 epoxy groups in the molecule and (B) a polyacrylate resin obtainable by polymerization of essentially (b1) from 30 to 95% by weight of esters of acrylic acid and/or methacrylic acid and/or ethylacrylic acid with C1-C20-alcohols in the presence of (b2) from 5 to 70% by weight of carboxyl-containing copolymers having a mean molecular weight of from 500 to 20,000, obtainable by bulk or solution polymerization and are used for heat-curable finishes, adhesive bonds and coatings.

Patent Agency Ranking