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US 2025/0025331 A1Published application
Methods for preparing compounded polymer latex compositions and condoms formed therefrom exhibiting improved mechanical properties
AssigneeChurch & Dwight Co., Inc.
InventorsAndrew Guttentag, Caryn Culleton Oryniak, Timothy Snowden
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Abstract
The present disclosure provides methods for providing elastomeric articles, such as condoms, that exhibit improved mechanical properties. The improved properties are realized by addition of spider silk at specific stages of the method for preparing the compounded polymer latex composition from which the condom is formed.
Claims22
A condom formed from a composition prepared by a method comprising:
- providing a polymer latex dispersion and adding thereto a plurality of compounding ingredients effective to form a compounding formulation;
- and
- subjecting the compounding formulation to conditions sufficient to crosslink the polymer latex to a defined cure state and thus provide the composition from which the condom is formed;
- wherein the method further comprises combining synthetic spider silk with the polymer latex dispersion prior to forming the compounding formulation or combining the synthetic spider silk with the compounding formulation prior to achieving the defined cure state.
1 more element
A condom comprising:
- at least one layer of a film formed from a compounded polymer latex composition that has been crosslinked to a defined cure state and that has synthetic spider silk incorporated therein,
- wherein the synthetic spider silk is effective to impart improved properties to the condom by having been added to the compounded polymer latex composition before reaching the defined cure state.
Dependencies are inferred from the claim text.