Antistat coated films
First Claim
1. An oriented self-supporting plastic film having a thin continuous antistatic coating on one or both sides thereof, said coating comprising a mixture of:
- (a) about 15% to about 50% by weight of a quaternary ammonium salt having the formula;
##STR5## wherein;
R is a lower alkyl group having 1 to 3 carbon atoms;
R'"'"' is an alkyl or alkenyl radical having from about 8 to 20 carbon atoms;
X- is an anion; and
(b) about 85% to about 50% by weight of a polymeric binder;
said coating being present in an amount effective to provide a film having a surface resistivity not greater than about 1013 ohms.
1 Assignment
0 Petitions
Accused Products
Abstract
Plastic films having improved antistatic properties are disclosed having a continuous coating on at least one surface of the film based on a composition comprising a mixture of:
(a) a polymeric binder, and
(b) a quarternary ammonium salt having the formula: ##STR1## wherein: R is a lower alkyl group having 1 to 3 carbon atoms;
R'"'"' is an alkyl or alkenyl radical having from about 8 to 20 carbon atoms; and
X- is an anion.
The antistat coating composition may be applied to the film material at any suitable stage during manufacture, i.e., after extrusion of the sheet material or before, during or after orienting the sheet. The resultant film is found to possess markedly enhanced antistat properties, good clarity, good slip properties, reclaimability and adhesive properties at higher binder levels rendering it suitable for the application of other coatings.
43 Citations
17 Claims
-
1. An oriented self-supporting plastic film having a thin continuous antistatic coating on one or both sides thereof, said coating comprising a mixture of:
-
(a) about 15% to about 50% by weight of a quaternary ammonium salt having the formula;
##STR5## wherein;
R is a lower alkyl group having 1 to 3 carbon atoms;R'"'"' is an alkyl or alkenyl radical having from about 8 to 20 carbon atoms; X- is an anion; and (b) about 85% to about 50% by weight of a polymeric binder;
said coating being present in an amount effective to provide a film having a surface resistivity not greater than about 1013 ohms. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
-
Specification