Methacrylated or acrylated cyanoacetates and the adhesives...

Details Methacrylated or acrylated cyanoacetates and the adhesives... Methacrylated or acrylated cyanoacetates and the adhesives...

1998-08-10

2001-08-28

Acquah, Samuel A. (Department: 1711)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C528S271000, C528S274000, C528S370000, C528S422000, C526S214000, C526S215000, C526S216000, C526S318000, C526S320000, C526S323100, C526S323200, C524S081000, C524S401000, C522S024000, C522S104000

Reexamination Certificate

active

06281310

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to methacrylated or acrylated cyanoacetates and the adhesives and polymers thereof.
2. Description of the Related Art
Cyanoacetic acid and its alkyl esters are used widely as raw materials for the synthesis of cyanoacrylate monomers and various pharmaceutical products.
SUMMARY OF THE INVENTION
The present invention provides methacryloyl or acryloyl derivatives of esters of cyanoacetic acid with formula
where R
1
=H or CH
3
, R
2
is alkyl, alkoxyalkyl, poly(oxyalkyl), cycloalkyl, alkynyl, aryl or an aromatic heterocyclic radical. R
2
may also be one of the foregoing moieties substituted with one or more other of the moieties; this includes the case of a substituent itself being substituted. Group R
2
may contain other compatible substituents, for example alkoxy, alkoxyalkoxy, carbalkoxyalkyl or halogen. The alkyl or alkenyl moiety may be cyclic and normally R
2
contains from 1 to 16 carbon atoms and often is a 1C, 2C, 3C, 4C, 5C, 6C, 7C or 8C group, more usually it is a 1C-6C group. In the case of moieties containing a heterocycle, heteroatom ring members are normally counted as a carbon atom.


REFERENCES:
patent: 4340708 (1982-07-01), Gruber

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