公开(公告)号：EP0728163A1

公开(公告)日：1996-08-28

申请号：EP94930816.0

申请日：1994-10-18

申请人： PPG INDUSTRIES, INC.

发明人： SIMEONE, Robert, Louis ,  LIPPERT, Robert, Dennis ,  O'DWYER, James, Brendan ,  KANIA, Charles, Martin

IPC分类号： B05D7 ,  C08G59 ,  C09D5 ,  C09D133 ,  C09D163

CPC分类号： C09D133/068 ,  C08G59/42 ,  C09D163/00 ,  C08L2666/34 ,  C08L2666/18

摘要： Powder coating compositions based on epoxy functional copolymers and polycarboxylic acid curing agents are disclosed. The compositions have high epoxy content providing for excellent physical and chemical properties. In addition, the compositions are formulated such that they have a relatively low melt viscosity which provides for good flow and excellent coating appearance. The compositions are useful as clear coats.

公开(公告)号：EP0720531A1

公开(公告)日：1996-07-10

申请号：EP94926612.0

申请日：1994-08-26

申请人： THE DOW CHEMICAL COMPANY

发明人： ALLEN, Scott, I. ,  FOYE, Duane, F. ,  FERGUSON, Michael

IPC分类号： A61F5 ,  B29C47 ,  B32B27 ,  B29K27 ,  B29L7 ,  B29L9

CPC分类号： B32B27/08 ,  A61F5/445 ,  A61L28/0069 ,  B32B7/12 ,  B32B27/40 ,  B32B2307/31 ,  B32B2307/7166 ,  B32B2307/7244 ,  B32B2307/7246 ,  B32B2375/00 ,  B32B2535/00 ,  Y10T428/1341 ,  Y10T428/1352 ,  Y10T428/2826 ,  Y10T428/2852 ,  Y10T428/3158 ,  C08L75/04

摘要： An oxygen and moisture impermeable multilayer barrier film was provided including a barrier layer comprising a homopolymer of vinylidene chloride or a copolymer of vinylidene chloride and vinyl chloride or methyl methacrylate. The barrier layer may be coated onto or coextruded with a water soluble film layer comprising a blend of a water soluble polymer such as polyvinyl alcohol, polycaprolactone, or polyethyloxozaline and a thermoplastic polyurethane. The multilayer film may be used for reusable or disposable ostomy bags and for heat sealable bags used in packaging agricultural chemicals, detergents, and other household chemicals.