摘要:
The present invention provides a method of patterning an electronic or photonic material on a substrate comprising: forming a film of said electronic or photonic material on said substrate; and using a fluoropolymer to protect regions of said electronic or photonic material during a patterning process.
摘要:
The present invention provides a dosage form, particularly a tamper resistant dosage form, comprising: melt-extruded particulates comprising a drug; and a matrix; wherein said melt-extruded particulates are present as a discontinuous phase in said matrix.
摘要:
The present invention provides a compound of the general formula Ia :
wherein R 2 , R 4 , R 5 are each independently selected of H, C(=O)R', C(=O)OR', P=O(OR') 2 , substituted or unsubstituted C 1 -C 18 alkyl, substituted or unsubstituted C 2 -C 18 alkenyl, substituted or unsubstituted C 2 -C 18 alkynyl, substituted or unsubstituted aryl; wherein R 1 is C(=O)R" or C(=O)OR", and R" is an optionally substituted alkyl with at least 4 carbon atoms or an optionally substituted alkenyl, wherein the optional substituents are selected from aryl or heterocyclic; or R" is derived from an optionally protected amino acid; wherein R 6 and R 7 are both =O and the dotted lines indicate a quinone ring, or R 6 is -OR 3 , where R 3 is H, C(=O)R', C(=O)OR' substituted or unsubstituted C 1 -C 18 alkyl, substituted or unsubstituted C 2 -C 18 alkenyl, substituted or unsubstituted C 2 -C 18 alkynyl, substituted or unsubstituted aryl, R 7 is H, and the dotted lines indicate a phenyl ring; wherein X 2 , X 3 , X 4 , X 5 , X 6 are independently selected of H, OH, OR', SH, SR', SOR', SO 2 R', C(=O)R', C(=O)OR', NO 2 , NH 2 , NHR', N(R') 2 , NHC(=O)R', CN, halogen, substituted or unsubstituted C 1 -C 24 alkyl, substituted or unsubstituted C 2 -C 18 alkenyl, substituted or unsubstituted C 2 -C 18 alkynyl, substituted or unsubstituted aryl, substituted or unsubstituted heteroaromatic; wherein X 1 is independently selected of OH, CN, (=O), or H; wherein each of the R' groups is independently selected from the group consisting of H, OH, NO 2 , NH 2 , SH, CN, halogen, C(=O)H, C(=O)CH 3 , CO 2 H, PO(OR') 2 , substituted or unsubstituted C 1 -C 18 alkyl, substituted or unsubstituted C 2 -C 18 alkenyl, substituted or unsubstituted C 2 -C 18 alkynyl, substituted or unsubstituted aryl; wherein when R 2 , R 3 , R 4 , and R 5 are substituted, the substituents are each independently selected from the group consisting of OH, OR', SH, SR', SOR', SO 2 R', C(=O)R', C(=O)OR', NO 2 , NH 2 , NHR', N(R') 2 , NHC(O)R', CN, halogen, =O, substituted or unsubstituted C 1 -C 18 alkyl, substituted or unsubstituted C 2 -C 18 alkenyl, substituted or unsubstituted C 2 -C 18 alkynyl, substituted or unsubstituted aryl, substituted or unsubstituted heterocyclic.
摘要:
Extrusion of a mix containing a pharmaceutically active agent can be achieved using a plasticising excipient in an amount sufficient to act as plasticiser and also act as lubricant, thereby avoiding the need for inclusion of a lubricant. The invention provides multiparticulates with controlled release properties, substantially free of lubricant.
摘要:
The present application is directed to several newly prepared semi-synthetic ecteinascidin (Et) species, designated herein as Boc-Et 729, Et 875, and Et 1560. The physical properties of these compounds, their preparation and bioactivities are also reported.
摘要:
This invention relates to an ethylene polymer having a weight average molecular weight of at least 120,000 comprising 1-50 tertiary double bonds per 10,000 carbon atoms.
摘要:
The present invention provides a method for increasing the retention of a scale inhibitor within a hydrocarbon producing system (e.g. a subterranean formation), said method comprising contacting said system with a polymer formed from a diallyl ammonium salt and with said scale inhibitor, wherein said polymer formed from a diallyl ammonium salt has a molecular weight of greater than 50,000 (e.g. a molecular weight of 55,000 to 2,000,000).
摘要:
This invention provides a method for inhibiting scale formation within a hydrocarbon producing system, said method comprising contacting said system with a polymer formed from a diallyl ammonium salt, a monomer comprising one carboxylate group and a monomer comprising at least two carboxylate groups or an anhydride group.