A monomer of formula (1) is provided wherein R
1
is hydrogen or a monovalent C
1
-C
6
hydrocarbon group, and R
2
is a group having polymerization functionality. Using the monomer, crosslinking units can be incorporated into a polymer chain. A chemically amplified negative resist composition comprising a base polymer having crosslinking units incorporated therein has a high sensitivity and forms a resist pattern with minimized LER.
Novel ester compounds, polymers, resist compositions and patterning process
申请人:——
公开号:US20040068124A1
公开(公告)日:2004-04-08
Novel ester compounds having formula (1) wherein A
1
is a polymerizable functional group having a double bond, A
2
is furandiyl, tetrahydrofurandiyl or oxanorbornanediyl, R
1
and R
2
each are a monovalent hydrocarbon group, or R
1
and R
2
may bond together to form an aliphatic hydrocarbon ring with the carbon atom, and R
3
is hydrogen or a monovalent hydrocarbon group which may contain a hetero atom are polymerizable into polymers. Resist compositions comprising the polymers are sensitive to high-energy radiation, have an improved sensitivity, resolution, and etching resistance, and lend themselves to micropatterning with electron beams or deep-UV rays.
1
N.sup.6 -(epoxynorborn-2-yl) adenosines as A.sub.1 adenosine receptor
申请人:University of Florida Research Foundation, Inc.
公开号:US05736528A1
公开(公告)日:1998-04-07
N.sup.6 -(epoxynorborn-2-yl)adenosines are Al adenosine receptor agonists that are useful for controlling atrial fibrillation, ventricular rate in atrial flutter, supraventricular tachyarrhythmia, inhibiting A--V- nodal transmission in supraventricular tachycardia, and for normalizing ventricular rhythm and hemodynamics.
Method for using A.sub.1 adenosine receptor agonists
申请人:University of Florida Research Foundation, Inc.
公开号:US05998387A1
公开(公告)日:1999-12-07
Adenosine and xanthine deriviatives, and compositions comprising those compounds, are potent selective agonists of adenosine receptors. The derivatives and compositions are used to treat conditions, including certain cardiac arrhythmias.
PRODUCTION OF OPHTHALMIC DEVICES BASED ON PHOTO-INDUCED STEP GROWTH POLYMERIZATION
申请人:Medina Arturo Norberto
公开号:US20110269869A1
公开(公告)日:2011-11-03
The invention provide a new lens curing method for making hydrogel contact lenses. The new lens curing method is based on actinically-induced step-growth polymerization. The invention also provides hydrogel contact lenses prepared from the method of the invention and fluid compositions for making hydrogel contact lenses based on the new lens curing method. In addition, the invention provide prepolymers capable of undergoing actinically-induced step-growth polymerization to form hydrogel contact lenses.