Patent ID: 8480840

Claim:
A process for making a stretch composite from an extensible substrate, said process comprising the steps of: a. providing a first extensible substrate; b. providing an application device, said device including at least one patterned print roll; c. printing one or more elastomeric compositions by means of said patterned print roll, said compositions having a melt viscosity of from about 1 to about 150 Pa·s, measured at 175° C. and 1 s −1 strain rate, an elasticity of at least about 50 N/m at 20° C., and a percent set of less than about 20%, onto said substrate thereby forming one or more intermediate structures; d. incrementally stretching one or more portions of the intermediate structures to permanently elongate the substrate in the portions; and e. converting the elastomeric composition into elastomeric members forming one or more elasticized regions of the substrate; wherein said elastomeric composition comprises a thermoplastic elastomer and a phase change solvent having the general formula: R′−L y −(Q−L x ) n-1 −Q−L y −R; (I) R′−L y −(Q−L x ) n −R; (II) R′−(Q−L x ) n −R; (III) R′−(Q−L x ) n-1 −Q−L y −R; (IV) R′−(Q−L x ) n-1 −Q−R; or (V) a mixture thereof; wherein Q is a para-ring substituted difunctional aromatic moiety, wherein the substitutions are in the 1,4 positions; L is CH 2 ; R and R′ are the same or different and are independently selected from H, CH 3 , COOH, CONHR 1 , CONR 1 R 2 , NHR 3 , NR 3 R 4 , hydroxy, or C1-C30 alkoxy; wherein R 1 , R 2 , R 3 and R 4 are the same or different and are independently selected from H or linear or branched alkyl from C1-C30; x is an integer from 1 to 30; y is an integer from 1 to 30; and n is an integer from 3 to 7.