Low-modulus elastomeric compositions and articles made therewith
AssigneeChurch & Dwight Co., Inc.
InventorsAndrew Oleson, Benny Yam, Cristina Cojocariu, Michael J. Harrison, Steven Bolkan
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Abstract
The present invention provides an elastomeric composition for making elastomeric articles having at least one layer, such as but not limited to condoms, which have a deformation stress or modulus below about 1.5 MPa at 500% extension, comprising at least one polymeric material, at least one plasticizer and optionally at least one coating. The elastomeric articles also have unique tactile and tensile properties, such as conformability and low radius of curvature.
Claims8
An elastomeric article having at least one layer, said at least one layer consisting essentially of 1) at least one styrene-block-ethylene-co-butylene-block-styrene (SEBS) film-forming polymer, and optionally, a polymeric material selected from the group consisting of rubber latex (NRL), synthetic polyisoprene (PI), polyurethane (PU), silicone, styrene-co-butadiene (SB), styrene-co-isoprene (SI), styrene-block-ethylene-co-propylene-block-styrene (SEPS), styrene-block-ethylene-co-ethylene-propylene-block-styrene (SEEPS), and mixtures thereof;
- 2) at least one plasticizer present in an amount of about 100 to less than 250 parts plasticizer per hundred parts of rubber (phr), and 3) optionally at least one filler selected from calcium carbonate, talc, titanium oxide, silica, clay, carbon black, magnesium carbonate, alumina, and mixtures thereof, wherein said article has a modulus of less than 1.2 MPa at 500% extension, and a thickness of about 66 to no more than 270 microns, wherein said article is a condom.
Dependencies are inferred from the claim text.