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1.发明申请公开(公告)号：US20180135250A1
公开(公告)日：2018-05-17
申请号：US15574714
申请日：2016-05-13
Applicant: BASF SE
Inventor： Hermann SEYFFER , Carmen-Elena CIMPEANU , Theo SMIT , Nico VELING , Juergen SCHMIDT-THUEMMES , Dirk LAWRENZ , Rainer BLUM
IPC: D21H19/12 , D21J1/08 , D21H27/10 , D21H19/60 , D21H19/62 , C08F212/08 , C09D109/06
CPC classification number: D21H19/12 , B05D1/28 , B05D3/0272 , C08F212/08 , C08F236/10 , C08F2400/00 , C08F2800/20 , C08K2003/265 , C09D109/06 , C09D125/10 , D21H19/20 , D21H19/22 , D21H19/54 , D21H19/60 , D21H19/62 , D21H27/10 , D21H27/18 , D21J1/08 , C08F220/06 , C08L3/02
Abstract: The invention relates to a use of a coating layer on a paper substrate for blocking oxygen transfer through the coated paper substrate, wherein the coating layer on the paper substrate is obtainable by a process, which comprises the steps of (a) providing a paper substrate with a surface, (b) applying onto the surface of the provided paper substrate an aqueous coating mass, and (c) drying of the paper substrate with the applied aqueous coating mass to obtain the coated paper substrate, wherein the aqueous coating mass contains an aqueous dispersion of a copolymer P, which is obtainable by radically initiated emulsion polymerization of at least 40 parts by weight of styrene and 22 to 49 parts by weight of butadiene and optionally other monomers based on the sum total of the parts by weight of all monomers, which is always 100, in the presence of a first degraded starch. It relates further to a coated paper substrate obtainable with a coating mass comprising the aqueous dispersion of the copolymer P and a further saccharide, which is added after the polymerization of the monomers. It relates also to a process for manufacturing the coated paper substrate obtainable with a coating mass comprising the aqueous dispersion of the copolymer P and the further saccharide.
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2.发明申请公开(公告)号：US20180142416A1
公开(公告)日：2018-05-24
申请号：US15574755
申请日：2016-05-13
Applicant: BASF SE
Inventor： Hermann SEYFFER , Carmen-Elena CIMPEANU , Theo SMIT , Nico VELING , Juergen SCHMIDT-THUEMMES , Dirk LAWRENZ , Rainer BLUM
CPC classification number: D21H19/20 , C08L25/14 , C08L33/08 , C08L53/02 , D21H19/12 , D21H19/22 , D21H19/54 , D21H19/58 , D21H21/14 , D21H27/10 , D21H27/18
Abstract: The invention relates to a use of a coating layer on a paper substrate for blocking oxygen transfer through the coated paper substrate, wherein the coating layer on the paper substrate is obtainable by a process, which comprises the steps of (a) providing a paper substrate with a surface, (b) applying onto the surface of the provided paper substrate an aqueous coating mass, and (c) drying of the paper substrate with the applied aqueous coating mass to obtain the coated paper substrate, wherein the aqueous coating mass contains an aqueous dispersion of a polymer P, which is obtainable by radically initiated emulsion polymerization of at least 25 parts by weight of a C1-C12 alkyl acrylate or a C1-C12 alkyl methacrylate based on the sum total of the parts by weight of all monomers, which is always 100, in the presence of a first degraded starch. It relates further to a coated paper substrate obtainable with a coating mass comprising the aqueous dispersion of the polymer P and a further saccharide, which is added after the polymerization of the monomers. It relates also to a process for manufacturing the coated paper substrate obtainable with a coating mass comprising the aqueous dispersion of the polymer P and the further saccharide.
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3.发明申请公开(公告)号：US20170369604A1
公开(公告)日：2017-12-28
申请号：US15537538
申请日：2015-12-16
Applicant: BASF SE
Inventor： Carmen-Elena CIMPEANU , Klaus MOELLER , Petra ARNOLD , Kristina GEORGIEVA , Juergen SCHMIDT-THUEMMES
CPC classification number: C08F2/28 , C08F2/24 , C08F212/08 , C08F220/18 , C08L25/14 , C08L33/08 , C08L33/16 , C08L2201/50 , D21H17/37 , D21H19/20 , D21H19/58 , D21H21/16 , C08F2220/1825 , C08F2220/286 , C08F220/34 , C08F220/06 , C08F226/06
Abstract: Finely divided, cationic, aqueous polymer dispersions, method for the production thereof, and the use thereof The present invention relates to a finely divided, cationic, aqueous polymer dispersion which is obtainable by emulsion polymerisation of ethylenically unsaturated monomers in a continuous phase containing an aqueous liquid in which the emulsion polymerisation is carried out, in the presence of polymerisation initiators, of a combination of monomers comprising (a) from 0 to less than 60% by weight of at least one optionally substituted styrene, (b) from greater than 0 to 80% of at least one C1-C12-alkyl acrylate and/or at least one C1-C12-alkyl methacrylate, (c) from 0 to 10% by weight of at least one ethylenically unsaturated monomer comprising at least one acid group, (d) from 5 to 20% by weight of at least one ethylenically unsaturated monomer comprising a cationic group, and (e) from 0 to 50% by weight of at least one non-ionic ethylenically unsaturated monomer differing from (a), (b), (c), and (d), the sum of (a)+(b)+(c)+(d)+(e) being 100% by weight, and the aqueous liquid contains from 0 to 4% by weight based on the weight of the combination of monomers of at least one emulsifier, in which the emulsion polymerisation is carried out optionally in the presence of at least one terpene containing compound. Also claimed is a process or preparing the finely divided, cationic, aqueous polymer dispersion and the use of the finely divided, cationic, aqueous polymer dispersion for sizing paper, board and cardboard.
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