PROCESS FOR PRODUCING OPTICALLY ACTIVE 4-CHLORO-3-HYDROXYBUTANAL COMPOUND
申请人:Hayashi Yujiro
公开号:US20130217901A1
公开(公告)日:2013-08-22
The invention relates to a method of producing optically active 4-chloro-3-hydroxybutanal compound (2) by reacting chloroacetaldehyde with aldehyde compound (1) in the presence of optically active pyrrolidine compound (5).
wherein each symbol is as defined in the specification.
PROCESS FOR PRODUCING OPTICALLY ACTIVE BETA-AMINO ALDEHYDE COMPOUND
申请人:Hayashi Yujiro
公开号:US20130211139A1
公开(公告)日:2013-08-15
The invention relates to a method of producing optically active β-aminoaldehyde compound (3) by reacting imine compound (1-1) or sulfone compound (1-2) with aldehyde compound (2) in the presence of an optically active pyrrolidine compound.
wherein each symbol is as defined in the specification.
FLUOROURETHANE AS AN ADDITIVE IN A PHOTOPOLYMER FORMULATION
申请人:Rölle Thomas
公开号:US20120231376A1
公开(公告)日:2012-09-13
The invention relates to a photopolymer formulation comprising matrix polymers, writing monomers, and photoinitiators, to the use of the photopolymer formulation for producing optical elements, in particular for producing holographic elements and images, to a method for illuminating holographic media made of the photopolymer formulation, and to special fluorourethanes.
PROCESS FOR PRODUCING OPTICALLY ACTIVE 3-SUBSTITUTED-3-FORMYL-2-HYDROXYPROPANOIC ACID COMPOUND
申请人:Hayashi Yujiro
公开号:US20130137880A1
公开(公告)日:2013-05-30
The present invention provides a production method of optically active 3-substituted-3-formyl-2-hydroxypropanoic acid compound (4), which includes a step of reacting glyoxylic acid compound (1-1) or (1-2) with aldehyde (2) in the presence of optically active pyrrolidine compound (3);
wherein each symbol is as defined in the specification.
PHOTOPOLYMER FORMULATION HAVING DIFFERENT WRITING COMONOMERS
申请人:Weiser Marc-Stephan
公开号:US20120231377A1
公开(公告)日:2012-09-13
The invention relates to a photopolymer formulation comprising matrix polymers, writing monomers, and photo initiators, comprising a combination of at least two different writing monomers. The invention further relates to the use of the photopolymer formulation for producing optical elements, in particular for producing holographic elements and images, to a method for producing the photopolymer formulation and to a method for illuminating holographic media made of the photopolymer formulation.