The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 19, 2000
Filed:
Feb. 27, 1998
Richard Russell Lattime, Tallmadge, OH (US);
Jaclyn Beth Laurich, Tallmadge, OH (US);
George Robert Handley, Calhoun, GA (US);
Omnova Solutions Inc., Fairlawn, OH (US);
Abstract
This invention relates to a carboxylated styrene-butadiene latex for utilization in bonding carpet piles to carpet backing. By utilizing this improved latex, it is possible to attain improved wet-adhesion, a stronger tuft bind and improved delamination resistance. These improved properties are attained by including a rosin acid soap in the carboxylated styrene-butadiene latex. This invention more specifically discloses a carpet latex compound which is comprised of (a) a carboxylated styrene-butadiene latex, (b) a filler, (c) a thickener and (d) optionally, a curative; wherein said carboxylated styrene-butadiene latex is comprised of (i) water, (ii) a carboxylated styrene-butadiene rubber, (iii) an emulsifier and (iv) a rosin acid soap. The subject invention further discloses a process for manufacturing carpet which comprises the steps of (1) coating one side of a backing with a carpet latex compound to produce a latex-coated backing, wherein the carpet latex compound is comprised of (a) a carboxylated styrene-butadiene latex, (b) a filler, (c) a thickener and (d) optionally, a curative, and wherein said carboxylated styrene-butadiene latex is comprised of (i) water, (ii) a carboxylated styrene-butadiene rubber, (iii) an emulsifier and (iv) a rosin acid soap; (2) bringing a pile into contact with the coated side of the latex-coated backing and (3) allowing the carpet latex compound to dry while keeping the pile in contact with the coated side of the latex-coated backing to produce the carpet.