3m Innovative Properties Company

Andrew R Davis

Sheng Ye

Jonathan D Zook

Susan E DeMoss

Babu Nana Gaddam

Jason D Clapper

Dennis Edward Vogel

William H Moser

Michael D Swan

Ann R Fornof

Erik M Townsend

Tao Gong

Brian S Lam

Susan E Demoss

A dual curable thiol-ene composition comprising a polythiol, an unsaturated compound, a photoinitiator, an organic hydroperoxide (thermal initiator) and optionally a nitrogen-containing base, such as e.g. an N-heterocyclic compound (together with the organic hydroperoxide a redox initiator system). A cross-linked polymer prepared therefrom. A method of making such a polymer. A cured sealant comprising such a polymer. The sealant is preferably for use in aerospace.

Dual curable thiol-ene composition, comprising a polythiol, an unsaturated compound, a photoinitiator and an organic hydroperoxide, as well as a cross-linked polymer sealant prepared therefrom for use in aerospace

A pattern article comprising a copolymer having polymerized units derived from a cleavable crosslinking monomer, to which a pattern is imparted by the release of incipient acid from a thermal acid generator or photoacid generator. The selective release of the acid provides a pattern of high crosslink density and low crosslink density as result of the incipient acid cleaving a portion of the crosslinks.

Patterned film article comprising cleavable crosslinker and methods

A method of making a polymer network. The method includes providing a composition including a polythiol having more than one thiol group and a polyepoxide having more than one epoxide group, applying a solution including a photolatent base catalyst to a surface of the composition, and subsequently exposing the composition to light. Upon exposure to light, the photolatent base catalyst photochemically generates a first amine and at least partially cures at least the surface of the composition to form the polymer network.

Method of making a polymer network from a polythiol and a polyepoxide

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Catonsville, MD, United States of America

Andrew R Davis