The present invention provides a (meth)acrylate manufacturing method characterized in that when manufacturing a (meth) acrylate by an ester exchange reaction between an alcohol and a monofunctional (meth)acrylate using catalyst A and catalyst B together, contact treatment of the ester exchange reaction product with adsorbent C is performed. Catalyst A: One or more kinds of compounds selected from a group consisting of cyclic tertiary amines with an azabicyclo structure and salts or complexes thereof, amidine and salts or complexes thereof, compounds with a pyridine ring and salts or complexes thereof, phosphines and salts or complexes thereof, and compounds with a tertiary diamine structure and salts or complexes thereof. Catalyst B: One or more kinds of compounds selected from a group consisting of compounds comprising zinc. Adsorbent C: One or more kinds of compounds selected from a group consisting of oxides and hydroxides comprising at least one of magnesium, aluminum and silicon.
[Problem] The purpose of the present invention is to obtain a multifunctional (meth)acrylate with good yield by an ester exchange reaction of a polyhydric alcohol such as pentaerythritol or dipentaerythritol with a monofunctional (meth)acrylate.
[Solution] A multifunctional (meth)acrylate manufacturing method characterized in that when manufacturing a multifunctional (meth)acrylate by an ester exchange reaction of a polyhydric alcohol with a monofunctional (meth)acrylate, catalyst (A) and catalyst (B) are used together. Catalyst (A): One or more kinds of compounds selected from a group consisting of cyclic tertiary amines with an azabicyclo structure or salts or complexes thereof, amidines or salts or complexes thereof, and compounds with a pyridine ring or salts or complexes thereof. Catalyst (B): One or more kinds of compounds selected from a group consisting of zinc-containing compounds.
A method for producing a (meth) acrylate comprises transesterification reaction of an alcohol and a monofunctional (meth) acrylate with catalysts in combination being cyclic tertiary amines having an azabicyclo structure and compounds containing zinc, separating a solid that contains the catalysts from a reaction product containing a (meth) acrylate, and producing a (meth) acrylate by transesterification reaction of an alcohol and a monofunctional (meth) acrylate, while using the recovered solid catalyst.
INFRARED SENSOR, NEAR-INFRARED ABSORBING COMPOSITION, CURED FILM, NEAR-INFRARED ABSORBING FILTER, IMAGE SENSOR, CAMERA MODULE, AND COMPOUND
申请人:FUJIFILM Corporation
公开号:US20170012072A1
公开(公告)日:2017-01-12
Provided are an infrared sensor, a near-infrared absorbing composition, a cured film, a near-infrared absorbing filter, an image sensor, a camera module, and a compound. An infrared sensor
100
which has an infrared transmitting filter
113
and a near-infrared absorbing filter
111
and detects objects by detecting light having wavelengths of 700 nm or longer and shorter than 900 nm, in which the near-infrared absorbing filter
111
includes a near-infrared absorbing substance having a maximum absorption wavelength at a wavelength of 700 nm or longer and shorter than 900 nm.
FLEXIBLE TO RIGID NANOPOROUS POLYURETHANE-ACRYLATE (PUAC) TYPE MATERIALS FOR STRUCTURAL AND THERMAL INSULATION APPLICATIONS
申请人:The Curators of the University of Missouri
公开号:US20170137376A1
公开(公告)日:2017-05-18
Novel urethane-acrylate (UAC) Star monomers and polyurethane-acrylate (PUAC) aerogel polymers derived therefrom are described herein, along with other novel, related monomers and polymers. Also described herein are processes for preparing the UAC Star monomers, the PUAC aerogel polymers, and the other related monomers and polymers. The PUAC and related polymers herein are useful in various applications including in structural and thermal insulation.