Tetralin esters of phenols or benzoic acids having retinoid like activity
申请人:Allergan, Inc.
公开号:US05130335A1
公开(公告)日:1992-07-14
Retinoid-like activity is exhibited by compounds of the formula ##STR1## where the R groups are independently hydrogen, or lower alkyl; A is --C(O)O--, --OC(O)--, --C(O)S--, or --SC(O)--; n is 0-5; and Z is H, --COB where B is --OH or a pharmaceutically acceptable salt, or B is --OR.sub.1 where R.sub.1 is an ester-forming group, or B is --N(R).sub.2 where R is hydrogen or lower alkyl, or Z is --OE where E is hydrogen or an ether-forming group or --COR.sub.2 where R.sub.2 is hydrogen, lower alkyl, phenyl or lower alkyl phenyl, or Z is --CHO or an acetal derivative thereof, or Z is --COR.sub.3 where R.sub.3 is --(CH.sub.2).sub.m CH.sub.3 where m is 0-4 and the sum of n and m does not exceed 4.
p-Hydroxybenzoic acid derivatives represented by formula (I),
(wherein R represents an alkyl group having 2 or more carbon atoms or an aralkyl group, and Y represents a sulfur atom or sulfonyl group) have bactericidal and fungicidal activities and are useful as bactericides and fungicides. Further they are useful as intermediates for plasticizers, synthetic resins, dyes, functional polymers, antioxidants, etc.
由式(I)代表的对羟基苯甲酸衍生物(其中 R 代表具有 2 个或多个碳原子的烷基或芳烷基,Y 代表硫原子或磺酰基)具有杀菌和杀真菌活性,可用作杀菌剂和杀真菌剂。 此外,它们还可用作增塑剂、合成树脂、染料、功能性聚合物、抗氧化剂等的中间体。
Thermochromic solid having reversibly invisible/visible construction enclosed therein
申请人:THE PILOT INK CO., LTD.
公开号:EP1095996A1
公开(公告)日:2001-05-02
A solid has a reversibly invisible/visible thermochromic internal construction enclosed therein which is composed of a solid made of a transparent resin and a fluorescent internal construction showing the internal structure of the solid enclosed therein, wherein a reversible thermochromic layer containing a reversible thermochromic composition is formed on the surface of the solid, or the transparent resin contains a reversible thermochromic composition.
POLYCARBONATE RESIN AND OPTICAL MATERIAL COMPRISING THE SAME
申请人:Mitsubishi Gas Chemical Company, Inc.
公开号:EP2019121A1
公开(公告)日:2009-01-28
A polycarbonate resin which is reduced in the change of hygroscopic-expansion coefficient with changing environmental humidity, is inhibited from warping, and is suitable for use as an optical material is provided with excellent productivity. The polycarbonate resin is obtained by reacting an aromatic dihydric phenol compound (2,2-bis(4-hydroxyphenyl)propane, etc.), a compound forming a carbonic ester (phosgene, etc.), and a chain terminator represented by the following general formula (A) (dodecyl 4-hydroxybenzoate, etc.). (In the formula (A), n is an integer of 10 - 20.)
Provided are a plasticizer for amorphous polyester resin which can give softness without hindering the transparency of the amorphous polyester resin, and an amorphous polyester resin composition superior in softness, transparency and heat resistance. A plasticizer for amorphous polyester resin, which is made of an ester of an (Aa) component selected from hydroxy aromatic carboxylic acid (AI), hydroxy condensed polycyclic aromatic carboxylic acid, hydroxy alicyclic carboxylic acid and others, and an (Ab) component selected from aliphatic alcohol, alicyclic alcohol, aromatic alcohol, phenol, alkylphenol, or alkylene oxide added products thereof.