B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
B29C 41/22 (2006.01) B32B 27/08 (2006.01) B32B 27/12 (2006.01) B32B 27/18 (2006.01) C08L 75/02 (2006.01) C08L 75/04 (2006.01)
Patent
CA 2399984
A method of making a polyurea - polyurethane composite structure that is substantially free from emission of volatile organic compounds is disclosed. The composite structure produced according to the method of the subject invention has a flexural modulus of at least 200,000 lb/in2. The composite structure includes first and second layers. A mold substrate is provided and a first-layer polyisocyanate component and a first- layer resin component are reacted and sprayed onto the mold substrate to form the first- layer. The first--layer polyisocyanate component includes an aliphatic polyisocyanate, and the first- layer resin component includes a polyamine thereby forming a polyurea show surface having a Shore D hardness of at least 65. After application of the first-layer, a second-layer polyisocyanate component and a second-layer resin component are reacted and sprayed behind the first-layer to form the second-layer of the composite structure. The second layer resin component more specifically includes a polyol having a theoretical functionality of at least three. The first and second layers of the composite are substantially free of VOCs.
Camba Jose
Jibrail Joseph
May Micheal
Peeler Calvin
Rickner Stephen
Basf Corporation
Robic
LandOfFree
Method for making a polyurea-polyurethane composite... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for making a polyurea-polyurethane composite..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for making a polyurea-polyurethane composite... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1850012