Correction fluid compositions
OwnerJohn Thompson, Kim H. Ng +1inventors
InventorsJohn Thompson, Kim H. Ng, Edward J. Ferguson
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Abstract
Substantially non-toxic correction fluid compositions including an opacifying pigment dispersed in a solution of a solvent, a siloxane and a film-forming polymeric material.
Claims58
A correction fluid composition comprising an opacifying pigment dispersed in a solution of a film-forming polymeric material and a volatile organosiloxane in a volatile solvent and where the volume ratio of the organosiloxane and the solvent provide an organosiloxane solvent mixture in which the value of the (.delta..sub.p+h) of the mixture is greater than about 2.0 cal.sup.1/2 cm.sup.-3/2 and less than about 7.35 cal.sup.1/2 cm.sup.-3/2 and the higher value is not exceeded at least until about 90 percent of the mixture has evaporated.
A method for producing a corrective coating on the surface of a substrate, said method comprising the steps of:
- a. providing a composition including an opacifying pigment dispersed in a solution of a film-forming polymeric material and a volatile organosiloxane in a volatile solvent and where the volume ratio of the organosiloxane and the solvent provide an organosiloxane solvent mixture in which the value of the (.delta..sub.p+h) of the mixture is greater than about 2.0 cal.sup.1/2 cm.sup.-3/2 and less than about 7.35 cal.sup.1/2 cm .sup.-3/2 and the higher value is not exceeded at least until about 90 percent of the mixture has evaporated,
- b. applying said composition to a marking on the surface of a substrate to cover said marking;
- c. allowing said volatile organosiloxane and said volatile solvent to evaporate to form a film comprising said film-forming polymeric material covering said marking.
A correction fluid composition comprising an opacifying pigment dispersed in a solution of a volatile solvent, a volatile organosiloxane and a film-forming polymeric material, said composition having a drying time of less than 60 seconds.
A method for providing a corrective coating, suitable for receiving a corrective marking, on the surface of a paper substrate, said method comprising the steps of:
- a. providing a composition comprising an opacifying pigment dispersed in a solution of a volatile polar solvent, a volatile organosiloxane and a film-forming polymeric material, said composition having a drying time of less than 60 seconds;
- b. applying said composition to a marking on the surface of a paper substrate to cover said marking;
- and
- c. allowing said volatile organosiloxane and said volatile solvent to evaporate to form a film comprising said film-forming polymeric material covering said marking.
A correction fluid composition comprising an opacifying agent dispersed in a solution comprising a film-forming polymeric material and a volatile terpene solvent, said film-forming polymeric material being capable of forming a durable film on a paper substrate at room temperature within 60 seconds after said correction fluid composition is applied to said paper substrate.
A method for providing a corrective coating on the surface of a paper substrate, said method comprising the steps of:
- a. providing a composition comprising an opacifying pigment dispersed in a solution that includes a volatile terpene solvent and a film-forming polymeric material;
- b. applying said composition to a marking on the surface of a paper substrate to cover said marking;
- and
- c. allowing said volatile terpene to evaporate to form a film comprising said film-forming polymeric material covering said marking.
Dependencies are inferred from the claim text.