Qinetiq Limited

The Secretary of State for Defence in Her Britannic Majesty's Government

Other

The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern Ireland

Evaluation Research Agency, Dra

Alan W Hall

David Lacey

Keith M Blackwood

John William Goodby

Michelle Jones

Paul E Milne

Ian Charles Sage

Keith Moray Blackwood

Damien Gerard McDonnell

Kenneth J Toyne

Jonathan S Hill

Stephen M Kelly

Mary O'Neill

Ryan Michael Heath

Steven M Kelly

Gareth J Owen

Robert William Bannister

Paul E Y Milne

Steven Pringle

Andrew G Biggs

Ridvan Karapinar

A poly(diallylamine)polymer pharmaceutical composition or pharmaceutical derivate used to sequester bile acid and/or to reduce serum cholesterol levels. The polymer is derived from a monomer of formula Ia, where Ris a bridging group of valency r, and r is an integer of 3 or greater to provide a cross linked polymer, and all diallyl nitrogen atoms are linked to at least two further diallyl nitrogen atoms. 

Use of poly diallyamine polymers

A copolymer containing repeat units formed from the monomers (I) and (II), wherein each R, if present, is independently hydrogen or hydrocarbyl; r is 0, 1 or 2; s is either 2 or 3; R&#x2013;Rare each independently hydrogen or hydrocarbyl; Rand Rare each independently hydrogen, halo or hydrocarbyl; Pis the anion formed by loss of a proton from a proton donating group P&#x2014;H; Z is either a bond or hydrocarbyl; Rand Rare each independently hydrogen, halo or hydrocarbyl; and either (a) A is an electron accepting group and W is either hydrogen or hydrocarbyl, (b) W is an electron accepting group and A is either a bond or hydrocarbyl or (c) both A and W are electron accepting groups. The invention also provides a method for preparing the copolymer by polymerising a mixture of (I) and (II) or their non-ionised precursors, preferably by exposure to ultraviolet radiation. The invention also relates to the uses of the copolymer in adhesive, coating, sealant and stereolithographic compositions 

Polymers

An adhesive or sealant composition comprising a compound of formula (I) provided that at least one of (a) Rand Ror (b) Rand Ror (c) Rand Rincludes an electron withdrawing group; and where necessary, a polymerisation initiator. Novel compounds of formula (I) are also described and claimed. Adhesive compositions can be used to bond for example glass and metal surfaces. Certain biocompatible adhesives for medical applications are included.

Adhesives and sealants

The use of a compound of formula (A), which comprises a group of sub-formula (I) where R, R, R, R, R, R, Xand Yare various specified organic groups wherein at least one of said groups has sufficient electron whitdrawing properties to activate the multiple bonds to polymerisation, in a stereolithographic composition. Stereolithographic applications of these compounds are also described and claimed.

Use of a composition in stereolithography

An adhesive or sealant composition comprising a compound of formula (I) provided that at least one of (a) R and R or (b) R and R or (c) R and R includes an electron withdrawing group; and where necessary, a polymerization initiator. Novel compounds of formula (I) are also described and claimed. Adhesive compositions can be used to bond for example glass and metal surfaces. Certain biocompatible adhesives for medical applications are included.

Compounds of formula (I) may be used as alignment layers in liquid crystal devices wherein X are idependently selected from H, F, CN, phenylene, C alkyl, whereby when X &equals;X , then X &equals;H and when X &equals;X , then X &equals;H, S are spacer units, PG are photoisomerisable/dimerisable groups.

Photoactive propane derivatives and orientation layers

Diallylamine monomers and network polymers obtained therefrom

Liquid crystal polymers

Growing community of inventors

Hull, United Kingdom

Alan W Hall