Release agents
AssigneeCellulose Solutions, LLC
InventorsJoseph F. Massidda, Alan P. Short
Life of this patent
Estimating the term…
Abstract
The invention provides release agents and methods for preparing textiles and molded articles there from. Lignocellulosic materials, concrete and polyurethane foam can be molded with these release agents. The release agents comprise the salt of tall oil fatty acids, preferably of very high purity. A synthetic wax and/or silicone resin is used with the tall oil fatty acids in preferred embodiments. The tall oil fatty acids contain less than 10 wt % , based on the total weight of the tall oil fatty acid, of unsaponifiables and less than 1 wt %, based on the total weight of the tall oil fatty acid, of rosin acid.
Claims37
A release agent comprising:
- a) an alkali metal salt of a rail oil fatty acid which contains less than 10 wt% based on the total weight of said tall oil fatty acid, of unsaponifiable impurities and less than 1 wt % of rosin acid, based on the total weight of said tall oil fatty acid;
- wherein said tall oil fatty acid has an acid number of 192 or more and a color Gardner value of 5 or less, and
- b) an aqueous liquid carrier.
A release agent which comprises:
- a) an alkali metal salt of tall oil fatty acid which contains less than 10 wt %, based on the total weight of said tall oil fatty acids, of unsaponifiable impurities;
- b) a wax;
- and
- c) an aqueous liquid carrier;
- and
- which contains less than 1 wt % of rosin acid, based on the total weight of said tall oil fatty acid;
- and said tall oil fatty acid has an acid number of 192 or more and a color Gardner value of 5 or less.
A release agent which comprises:
- a) an alkali metal salt of a tall oil fatty acid which contains less than 10 wt %, based on the total weight of said tall oil fatty acids, of unsaponifiable impurities;
- b) polydimethylsiloxane;
- and
- c) an aqueous liquid carrier;
- and
- which contains less than 1 wt % of rosin acid, based on the total weight of said tall oil fatty acid;
- and said tall oil fatty acid has an acid number of 192 or more and a color Gardner value of 5 or less.
Dependencies are inferred from the claim text.