专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US10941300B2 Composition for modifying rheology of coating color, its use and a coating color 有权
公开(公告)号：US10941300B2
公开(公告)日：2021-03-09
申请号：US16078114
申请日：2017-03-22
申请人： Kemira Oyj
发明人： Anneli Lepo , Helena Peuranen
IPC分类号： C09D4/00 , C09D4/06 , C09D7/61 , C08K3/013 , C08F2/22 , C08F2/44 , C08F212/08 , C08F220/18 , C08K3/20 , C08K3/26 , C08L3/02 , C08K3/22 , D21H19/54
摘要： The invention relates to a composition for modifying rheology of coating colour and its use. The composition comprises an aqueous polymer dispersion, comprising a copolymer of monomer (a), which is at least one optionally substituted styrene, and monomer (b), which is at least one C1-C4-alkyl (meth)acrylate. The copolymer has a particle size D50

2. 发明申请

US20180016746A1 Polymer product in particle form and its use 审中-公开
公开(公告)号：US20180016746A1
公开(公告)日：2018-01-18
申请号：US15546069
申请日：2016-01-26
申请人： Kemira Oyj
发明人： Asko Karppi , Matti Hietaniemi , Anneli Lepo , Kimmo Strengell
IPC分类号： D21H17/45 , D21H21/18 , C08F220/56
摘要： The invention relates to a water-soluble polymer product in particle form, comprising amphoteric polyacrylamide, which is obtained by gel polymerisation of acrylamide together with anionic and cationic monomers. The amphoteric polyacrylamide has a mass average molecular weight MW of 1500000-6000000 g/mol, and a total ionicity of 4-15 mol-%, whereby the polymer product has a polymer content of at least 60 weight-%. The invention relates also to uses of the polymer product in paper and board making.

3. 发明授权

US10907307B2 Cationic surface sizing agent 有权
公开(公告)号：US10907307B2
公开(公告)日：2021-02-02
申请号：US16062550
申请日：2016-12-28
申请人： Kemira OYJ
发明人： Anneli Lepo , Elsi Turunen , Tarja Turkki
IPC分类号： D21H21/16 , D21H17/45 , D21H13/08 , C08F220/34 , C08F220/64 , C08F220/66 , C08F267/02 , C08F2/22 , C08F212/08 , C08F257/02 , D21H17/37 , D21H23/56 , C08K3/20 , C08F220/18
摘要： Provided herein is an aqueous polymer dispersion (A) obtainable by free radical emulsion copolymerizing a first ethylenically unsaturated monomer blend having 15 to 100% by weight of at least one C1-C4-alkyl (meth)acrylate, in the presence of a water-soluble redox system having a first free radical initiator for free radical emulsion copolymerization and an aqueous prepolymer composition (B) obtainable by free radical emulsion copolymerizing in a polymerization solvent having C1-6-carboxylic acid and C1-6-carboxylic acid anhydride a second ethylenically unsaturated monomer blend with 5 to 50% by weight of at least one ethylenically unsaturated quaternary amine, and 10 to 95% by weight of at least one optionally substituted styrene, in the presence of a second free radical initiator.

4. 发明申请

US20190003124A1 CATIONIC SURFACE SIZING AGENT 审中-公开
公开(公告)号：US20190003124A1
公开(公告)日：2019-01-03
申请号：US16062550
申请日：2016-12-28
申请人： Kemira OYJ
发明人： Anneli Lepo , Elsi Turunen , Tarja Turkki
IPC分类号： D21H21/16 , D21H17/45 , D21H13/08 , C08F212/08 , C08F220/34 , C08F220/64 , C08F220/66 , C08F257/02 , C08F2/22
摘要： Provided herein is an aqueous polymer dispersion (A) obtainable by free radical emulsion copolymerizing a first ethylenically unsaturated monomer blend having 15 to 100% by weight of at least one C1-C4-alkyl (meth)acrylate, in the presence of a water-soluble redox system having a first free radical initiator for free radical emulsion copolymerization and an aqueous prepolymer composition (B) obtainable by free radical emulsion copolymerizing in a polymerization solvent having C1-6-carboxylic acid and C1-6-carboxylic acid anhydride a second ethylenically unsaturated monomer blend with 5 to 50% by weight of at least one ethylenically unsaturated quaternary amine, and 10 to 95% by weight of at least one optionally substituted styrene, in the presence of a second free radical initiator.

5. 发明授权

US11242423B2 Surface sizing composition, method of production, and use thereof 有权
公开(公告)号：US11242423B2
公开(公告)日：2022-02-08
申请号：US16499302
申请日：2018-03-29
申请人： KEMIRA OYJ
发明人： Anneli Lepo , Tarja Turkki , Elsi Turunen
IPC分类号： D21H17/35 , C08F212/08 , C08F220/18 , C08F2/22 , C08L3/02 , D21H17/37 , D21H17/66 , D21H19/22 , D21H19/64 , D21H21/16
摘要： The present invention relates to a surface sizing composition comprising a metal salt, wherein the metal has at least 3 valence electrons, and an aqueous polymer dispersion, wherein the aqueous polymer dispersion is an aqueous polymer dispersion (A) obtainable by free radical emulsion copolymerizing a first ethylenically unsaturated monomer blend comprising (a) 0 to 75% by weight of at least one optionally substituted styrene, (b) 15 to 100% by weight of at least one C1-C4-alkyl (meth)acrylate, and (c) 0 to 10% by weight of other ethylenically unsaturated copolymerizable monomers, wherein the sum (a)+(b)+(c) is 100%, in the presence of a water-soluble redox system comprising a first free radical initiator for the free radical emulsion copolymerization and an aqueous prepolymer composition (B) obtainable by free radical emulsion copolymerizing in a polymerization solvent comprising C1-6-carboxylic acid and C1-6-carboxylic acid anhydride, a second ethylenically unsaturated monomer blend comprising (i) 5 to 50% by weight of at least one ethylenically unsaturated quaternary amine selected from quaternary salt of N,N,N-tri(C1-4-alkyl)amino C1-4-alkyl(meth)acrylate with a mineral acid or an organic acid and/or quaternary salt of N,N,N-tri(C1-4-alkyl)amino C1-4-alkyl(meth)acrylamide with a mineral acid or an organic acid, (ii) 0 to 40%, preferably 0%, by weight of at least one ethylenically unsaturated tertiary amine selected from N,N-di(C1-4-alkyl)amino C1-4-alkyl(meth)acrylate and/or N,N-di(C1-4-alkyl)amino C1-4-alkyl(meth)acrylamide, (iii) 10 to 95% by weight of at least one optionally substituted styrene, (iv) 0 to 50% by weight of at least one C1-C4-alkyl (meth)acrylate, and (v) 0 to 10% by weight of other ethylenically unsaturated copolymerizable monomers, wherein the sum (i)+(ii)+(iii)+(iv)+(v) is 100%, in the presence of a second free radical initiator, and adding water to the obtained polymer dispersion to obtain the aqueous prepolymer composition. The present invention further relates to production thereof and use on cellulosic materials.

6. 发明申请

US20190003126A1 A method for producing a sizing agent composition, a sizing agent composition and use thereof 审中-公开
公开(公告)号：US20190003126A1
公开(公告)日：2019-01-03
申请号：US16064289
申请日：2016-12-15
申请人： Kemira Oyj
发明人： Anneli Lepo , Elsi Turunen , Tarja Turkki
IPC分类号： D21H21/16 , C08L3/02 , C08L33/10 , C08L97/00 , D21H19/16
摘要： The present invention relates to a sizing agent composition comprising starch, lignosulfonate and poly(alkyl acrylate), poly(alkyl (meth)acrylate), a mixture of poly(alkyl acrylate) and poly(alkyl methacrylate) or a copolymer of alkyl acrylate and alkyl (meth)acrylate. The present invention further relates to a method for preparing the sizing agent composition, and use of the sizing agent composition for sizing paper, paper products or board.

7. 发明授权

US11242654B2 Coating structure, sheet-like product and its use 有权
公开(公告)号：US11242654B2
公开(公告)日：2022-02-08
申请号：US16617770
申请日：2018-06-14
申请人： Kemira Oyj
发明人： Tarja Turkki , Anneli Lepo
IPC分类号： D21H19/82 , B65D65/42 , D21H19/20 , D21H19/40 , D21H19/54 , D21H19/58 , D21H19/64 , D21H27/10
摘要： A coating structure for a sheet-like substrate, which includes lignocellulosic fibres is disclosed. The structure includes at least one pre-coat layer including at least 70 weight-% of a first styrene (meth)acrylate copolymer polymerised in the presence of a stabiliser, having a glass transition temperature Tg ≤20° C. preferably ≤10° C., ≤30 weight-% of inorganic platy mineral particles and 0.01-2 weight-% of at least one first thickener. The coating structure further includes a top coat layer including at least 50 weight-% of a second styrene (meth)acrylate copolymer polymerised in the presence of a stabiliser having a glass transition temperature Tg ≤20° C. preferably ≤10° C., ≤30 weight-% of inorganic mineral particles, 0.01-5 weight-% of at least one second thickener and 0.5-30 weight-% of an antiblocking agent. Further disclosed is a sheet-like product coated with the coating structure.

8. 发明授权

US10781555B2 Method for producing a sizing agent composition, a sizing agent composition and use thereof 有权
公开(公告)号：US10781555B2
公开(公告)日：2020-09-22
申请号：US16064289
申请日：2016-12-15
申请人： Kemira Oyj
发明人： Anneli Lepo , Elsi Turunen , Tarja Turkki
IPC分类号： D21H21/16 , C08L3/02 , C08L33/10 , C08L97/00 , D21H19/16 , D21H19/54 , D21H19/58 , D21H17/28 , D21H17/00 , D21H17/23
摘要： The present invention relates to a sizing agent composition comprising starch, lignosulfonate and poly(alkyl acrylate), poly(alkyl (meth)acrylate), a mixture of poly(alkyl acrylate) and poly(alkyl methacrylate) or a copolymer of alkyl acrylate and alkyl (meth)acrylate. The present invention further relates to a method for preparing the sizing agent composition, and use of the sizing agent composition for sizing paper, paper products or board.

9. 发明授权

US10717794B2 Aqueous polymer dispersion, its use and method for preparing aqueous polymer dispersion 有权
公开(公告)号：US10717794B2
公开(公告)日：2020-07-21
申请号：US16078077
申请日：2017-03-22
申请人： Kemira Oyj
发明人： Anneli Lepo , Helena Peuranen
IPC分类号： C08F212/08 , C08F220/18 , D21H19/58 , C08F251/00 , D21H21/10 , C09D151/02 , C08F2/20 , C08F220/14 , C08L3/02 , C08K3/013
摘要： The invention relates to an aqueous polymer dispersion having a viscosity of ≤150 m Pas at 40% solids content and comprising polymer particles having a particle size D50 less than 85 nm. The polymer dispersion is obtainable by free radical emulsion copolymerisation of at least monomer (a) and monomer (b), where monomer (a) is at least one optionally substituted styrene and monomer (b) is at least one C1-C4-alkyl (meth)acrylate, in a reaction mixture comprising degraded starch which has an average molecular weight Mn

10. 发明授权

US10590604B2 Polymer product in particle form and its use 有权
公开(公告)号：US10590604B2
公开(公告)日：2020-03-17
申请号：US15546069
申请日：2016-01-26
申请人： Kemira Oyj
发明人： Asko Karppi , Matti Hietaniemi , Anneli Lepo , Kimmo Strengell
IPC分类号： D21H17/45 , D21H21/18 , D21H17/37 , D21H21/10 , D21H17/42 , D21H17/44 , C08F220/56
摘要： The invention relates to a water-soluble polymer product in particle form, comprising amphoteric polyacrylamide, which is obtained by gel polymerisation of acrylamide together with anionic and cationic monomers. The amphoteric polyacrylamide has a mass average molecular weight MW of 1 500 000-6 000 000 g/mol, and a total ionicity of 4-15 mol-%, whereby the polymer product has a polymer content of at least 60 weight-%. The invention relates also to uses of the polymer product in paper and board making.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式