Oil-based products - such as moisturisers and Vaseline - can damage latex and
polyisoprene condoms, but they are safe to use with polyurethane condoms.
Key statement: Provided is a rubber composition which is improved in rolling resistance and abrasion resistance at the same time without reducing wet grip performance, and the rubber composition is prepared by compounding 100 parts by mass of a rubber component containing 30% by mass or more of
polyisoprene with 2 to 200 parts by mass of carbon black having a hydrogen release rate of 0.2% by mass or more and/or a ratio of a nitrogen adsorption specific surface area [N.sub.2]SA and a cetyltrimethylammonium bromide adsorption specific surface area CTAB, [N.sub.2]SA/ CTAB, of 1.2 to 1.5 and a nitrogen adsorption specific surface area [N.sub.2]SA of 160 to 300 [m.sup.2]/g.
[30, 31] reported that nanosilica-grafted
polyisoprene (Si[O.sub.2]-g-PIP) were prepared via a differential microemulsion polymerization of isoprene on silane-treated nanosilica or RAFT emulsifier-free emulsion polymerization using water-soluble initiators.
IRP Medical is a US based contract manufacturing company that specializes in custom molding of silicone, organic rubber and
polyisoprene elastomeric materials.
It is compatible with latex,
polyisoprene, and polyurethane condoms.
"Since Lifestyles launched the first
polyisoprene SKYN condom, we have seen an increase in demand for new materials and designs that aid in pleasure while providing the protection users have come to expect from traditional latex condoms.
Based out of Iselin, NJ, the SKYN brand of condoms was launched in 2008 as the first-ever
polyisoprene, non-latex condom that met all the US Food and Drug Administration requirements for safety and efficacy.
This shape memory material may be an epoxy, a styrene copolymer, cyanate ester, polyurethane, polyethylene, styrene-butadiene copolymer,
polyisoprene, acrylic and norbornene copolymer, napthalene polymer, or malemide.
"It is softer and offers more stretch than the original, due to a breakthrough in formulating
polyisoprene, giving the new material even less modulus and more elasticity than ever before."
All five feature a clear polypropylene barrel and plunger rod, and a
polyisoprene plunger tip.
The company's undergloves--Protexis PI Blue with Neu-Thera and Protexis Latex Blue with Neu-Thera Surgical Gloves--are powder-free, available in synthetic
polyisoprene (PI) and natural rubber latex (latex), and are blue in color.