George Collins - Murray KY, US Stanley Henley - Murray KY, US Janis Anderson - Danbury CT, US
Assignee:
R.T. Vanderbilt Company, Inc. - Norwalk CT
International Classification:
C09K003/14 C09G001/02 C09G001/04
US Classification:
051307000, 051308000, 051309000
Abstract:
An abrasive composition is provided based on the following: The composition may have particles of up to μm, and preferably average particle size diameter of 30-45 μm.
Additives For Extending Pot Life Of 2-Component Polyurethane Coatings
Janis Anderson - Danbury CT, US Michael Haraczy - Trafford PA, US
Assignee:
R. T. Vanderbilt Company, Inc. - Nowalk CT
International Classification:
C08K 5/34
US Classification:
524092000, 524431000
Abstract:
The invention relates to an additive system for increasing the pot life of two-component, solvent-borne polyurethane coatings; such polyurethane coatings in combination with the additive; as well as a method for increasing pot life based on using the additive in combination with such coatings. The additive is based on cobalt at from 0.01-0.10% and an organic chelating agent at 0.03-0.5%, all percentages expressed as mass percent of resin solids. Preferred amounts of cobalt are about 0.02-0.04% and preferred amounts of chelating agent are about 0.066-0.15%. As it is more preferred to use the least amount of additive, a more preferred additive composition contains about 0.02% cobalt and about 0.06-0.08% chelating agent. It is also possible to express the components in terms of a ratio, wherein a preferred composition is between about 1:5 to about 1:20 cobalt:chelating agent, with a most preferred composition at about 1:3.8
Additives For Extending Pot Life Of 2-Component Polyurethane Coatings
Janis Anderson - Danbury CT, US Michael Haraczy - Trafford PA, US
Assignee:
R.T. Vanderbilt Company, Inc. - Norwalk CT
International Classification:
C08K 5/34
US Classification:
524092000
Abstract:
The invention relates to an additive system for increasing the pot life of two-component, solvent-borne polyurethane coatings; such polyurethane coatings in combination with the additive; as well as a method for increasing pot life based on using the additive in combination with such coatings. The additive is based on a metal catalyst selected from cobalt, manganese or mixtures thereof at from 0.01-0.10% and an organic chelating agent at 0.03-0.5%, all percentages expressed as mass percent of resin solids. Preferred amounts of metal catalyst are about 0.02-0.04% and preferred amounts of chelating agent are about 0.066-0.15%. As it is more preferred to use the least amount of additive, a more preferred additive composition contains about 0.02% metal catalyst and about 0.06-0.08% chelating agent. It is also possible to express the components in terms of a ratio, wherein a preferred composition is between about 1:5 to about 1:20 metal catalyst chelating agent, with a most preferred composition at about 1:3.8