Clay,
If you are familiar with the CAS Roles, you could link the registry number
of your reactant to the reactant/reagent roles (ract/rl, rct/rl, rgt/rl) and
link your product rn to the preparation role (prep/rl) in CA or CAPLUS. See
the Quick reference card for more roles and information...
http://www.cas.org/ONLINE/QR/casroles.pdf
Paul Schulwitz
Technical Information Specialist
STIC USPTO
-----Original Message-----
From: claymatthews@yahoo.com [mailto:claymatthews@yahoo.com]
Sent: Thursday, September 05, 2002 8:54 AM
To: Marnstu2@AOL.COM; piug-l@derwent.co.uk
Subject: Re: polystyrene preparation
The nature of the search is a 'patentability' search.
What I really want to know is whether a particular
reactant, (which would also have a registry #) has
ever been used as a reactant in generataing
polystyrene. Is it possible for me to search for
reactions based on this 'reactant qualifier.'
--- Marnstu2@AOL.COM wrote:
> At the risk of reciting the obvious, I would note
> that there are searches and
> searches. Some searches are just looking for some
> information on a subject,
> others are looking for all of the information on a
> subject, and still others
> are looking for specific information on the subject.
>
> Styrene polymerization is a VERY mature art. A lot
> of information on the
> polymerization of styrene can be looked up in
> standard sources, such as the
> Encyclopedia of Polymer Science & Technology, or
> various textbooks. Styrene
> can be converted to high polymers, low polymers, by
> thermal, free radical,
> anionic, cationic, Ziegler, metallocene techniques.
> Most of these, perhaps
> excluding the recent metallocenes and other single
> site systems, should be
> described pretty well in the standard references.
> Clay may need a search,
> but perhaps he can just look at a book (unless the
> USPTO has managed to
> destroy all books in all libraries).
>
> Stu Kaback
>
>
>
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