公开(公告)号：US20180148646A1

公开(公告)日：2018-05-31

申请号：US15576122

申请日：2016-06-17

Applicant: Denka Company Limited

Inventor： Koichi FUKUDA ,  Hironori KONISHI ,  Kazuhiro KOTE

IPC: C09K17/20 ,  C08L31/04 ,  E02D17/20 ,  E02D3/12

CPC classification number: C09K17/20 ,  C08L31/04 ,  C08L2201/52 ,  C09K2105/00 ,  E02D3/12 ,  E02D17/20 ,  C08L29/04

Abstract: The present invention provides a soil erosion prevention agent which is excellent in the freeze-thaw stability while maintaining the soil erosion prevention effect. When a toluene-insoluble matter of the water-borne resin emulsion is 60 mass % or more and a content of the water-soluble polymer in the soil erosion prevention agent is 1 to 7 mass %, preferably 3 to 5 mass %, the soil erosion prevention agent excellent in the freeze-thaw stability is provided and suitable for greening and a spraying material. The water-borne resin emulsion is preferably a resin containing a structural unit derived from vinyl acetate, or an ethylene-vinyl acetate copolymer emulsion.

公开(公告)号：US20190309195A1

公开(公告)日：2019-10-10

申请号：US16315414

申请日：2017-06-29

Applicant: DENKA COMPANY LIMITED

Inventor： Gaito KIYOFUJI ,  Masao ONOZUKA ,  Manabu MIZUSHIMA ,  Shogo HAGIWARA ,  Hironori KONISHI ,  Daisuke SHIMIYA ,  Kazuhiro KOTE

IPC: C09J111/02 ,  C09J11/04 ,  C09J11/06

Abstract: A latex composition gives favorable initial adhesive strength after short drying period, shows storage stability and spray coating characteristics and gives a soft adhesive layer after drying and a one-pack type aqueous adhesive. The latex composition includes a chloroprene-based polymer latex (A) containing a chloroprene-based polymer in an amount of 50 to 85 mass % as solid matter and an acrylic polymer latex (B) having a glass transition temperature of −52 to −9° C. and containing an acrylic polymer containing a sodium alkylbenzenesulfonate having a structure represented by the Chemical Formula (1) in an amount of 15 to 50 mass % as solid matter, in a total amount of 100 parts by mass, and additionally at least one pH regulator (C) selected from boric acid, ammonium sulfate, and amino acids having an isoelectric point of 5.5 to 6.5 in an amount of 3 to 13 parts by mass as solid matter.

公开(公告)号：US20180320070A1

公开(公告)日：2018-11-08

申请号：US15768318

申请日：2016-11-30

Applicant: Denka Company Limited

Inventor： Koichi FUKUDA ,  Hironori KONISHI ,  Kazuhiro KOTE

IPC: C09K17/20 ,  E02D17/20 ,  E02B3/12

CPC classification number: C09K17/20 ,  C08L29/04 ,  C09K17/18 ,  E02B3/12 ,  E02D17/20

Abstract: The present invention provides a soil erosion prevention agent which is excellent in the freeze-thaw stability while maintaining the soil erosion prevention effect. A soil erosion prevention agent of the present invention comprises a water-borne resin emulsion; and a water-soluble polymer, wherein a content of the water-borne resin emulsion is 99 to 93 mass %, a content of the water-soluble polymer is 1 to 7 mass %, and the water-borne resin emulsion contains 0.01 to 0.10 parts by mass of a structural unit derived from a polyfunctional monomer with respect to 100 parts by mass of a structural unit derived from a main monomer.