Jeen International granted US patent for non-crosslinked silicone copolymers

By Guy Montague-Jones

- Last updated on GMT

Related tags: Polymer

Jeen International has been granted a US patent covering its Jeeslic PS Series of silicone copolymers as part of a drive by the company to gain worldwide protection for the ingredients.

Launched at the beginning of the year, the Jeeslic PS Series is suitable for a wide range of cosmetic applications from skin care to color.

Selling points over competing products

Compared to rival crosslinked silicone polymers, the non-crosslinked polymers are marketed on the greater flexibility they afford cosmetic formulators.

“Key advantages of the Jeesilc PS Series products are the wider range of end-product viscosities possible and the ability to adjust surface appearance of end-products from gloss to matte,”​ said Jeen general manager Carl Cappabianca, who joined the company this summer after heading up Lonza’s personal care business.

Avoiding a crowded patent landscape

Cappabianca also said the ingredients provide freedom to formulate without crosspolymer patent concerns.​There are currently over 400 silicone crosspolymer patents giving little room to maneuver within the field.

By pursuing silicone cross-linked chemistries Jeen has circumnavigated the patent minefield.

Cappabianca said: “Since the 400 plus crosspolymer patents have made for a complicated silicone polymer formulating landscape, a fresh, new approach was needed.”

Gaining the US patent covering the use of the Jeeslic PS Series in a wide range of cosmetic applications is the first step in the pursuit of global patent coverage.

Jeen is also developing extensions to the Jeesilic PS Series as it uncovers new applications and benefits of the Bis Vinyl Dimethicone/ Dimethicone Copolymer that the range is based upon.

Related topics: Formulation & Science

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