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Patent No. 5823572

Self Defense Weapon With Memo

A self defense weapon formed as a memo pad and which is easily held by a person's fingers, therefore making it possible to provide protection from a mugger and also to quickly and easily write a record or a message without failure of missing or forgetting significant information under a stressful situation.

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Class 526/96 - Contains elemental transition metal or a non-oxide compound of a transition metal


Subclass of Class 526 - Synthetic resins or natural rubbers -- part of the class 520 series
Definition: Subject matter wherein the specified material contains at
No. of patents: 104
Last issue date: 07/31/2012


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NumberTitleIssue Date
4128500Polymerization catalyst and method
A catalyst and the method of making same and a method of making polymers of 1-olefins with said catalyst in which the catalyst is prepared by chemically modifying a finely divided, difficultly reducible, inorganic support of the nature of silica, alumina,...
12/05/1978
4119773Olefin polymerization catalyst
An olefin polymerization catalyst is prepared by depositing the chromium (III) compound obtained from the reaction of a chromium (III) carboxylate with an aluminum alkoxide upon an inorganic support material and calcining the impregnated support material ...
10/10/1978
4117217Method of polymerizing olefins
A new catalyst and method of making polymers therewith and the process of preparing the catalyst in which the catalyst is prepared by dispersing on a finely divided carrier material, particularly a difficultly reducible inorganic support such as silica, a...
09/26/1978
4115639Ethylene polymerization with ether modified catalyst
Supported bis-cyclopentadienyl chromium [II] catalysts are modified with compounds having in their structure the moiety ##STR1## in order to improve the toughness and impact strength of the resulting ethylene polymers made therewith....
09/19/1978
4101722Polymerization process using spray dried titanium-containing catalyst
A chromium-containing catalyst utilizing spray dried silica gel containing titanium is used to produce olefin polymers exhibiting an outstanding resistance to environmental stress cracking....
07/18/1978
4100105Titanium-modified silyl chromate catalysts for ethylene polymerization
A catalyst for the preparation of ethylene polymers having higher melt indexes comprises a silyl chromate deposited on a silica support containing both aluminum and titanium....
07/11/1978
4096093Polymerization catalyst and method
A new catalyst and method of making polymers therewith and the process of preparing the catalyst in which the catalyst is prepared by dispersing on a finely divided carrier material, particularly a difficultly reducible inorganic support such as silica, a...
06/20/1978
4086409Ethylene polymerization with siloxane modified catalyst
Supported bis-cyclopentadienyl chromium [II] catalysts are modified with compounds having in their structure the moiety ##STR1## IN ORDER TO IMPROVE THE TOUGHNESS AND IMPACT STRENGTH OF THE RESULTING ETHYLENE POLYMERS MADE THEREWITH....
04/25/1978
4086408Ethylene polymerization with silane modified catalyst
Supported bis-cyclopentadienyl chromium [II] catalysts are modified with compounds having in their structure the moiety ##STR1## IN ORDER TO IMPROVE THE TOUGHNESS AND IMPACT STRENGTH OF THE RESULTING ETHYLENE POLYMERS MADE THEREWITH....
04/25/1978
4071673Catalyst and method
A new catalyst and method of making polymers therewith and the process of preparing the catalyst in which the catalyst is prepared by dispersing on a finely divided carrier material, particularly a difficultly reducible inorganic support such as silica, a...
01/31/1978
4069124Method for controlled radiation polymerization of olefinic monomers
Method for the cationic polymerization of at least one olefinic monomer and more particularly the homopolymerization of a mono-olefinic monomer such as isobutylene and the copolymerization thereof with a di-olefinic monomer (diene) such as butadiene and o...
01/17/1978
4069125Method for controlled radiation polymerization of olefinic monomors
Method for the cationic polymerization of at least one olefinic monomer and more particularly the homopolymerization of a mono-olefinic monomer such as isobutylene and the copolymerization thereof with a di-olefinic monomer (diene) such as butadiene and o...
01/17/1978
4068054Prevention of fouling in polymerization reactors and antistatic agents
An olefin is polymerized in a hydrocarbon diluent in a turbulent reaction zone to produce particles of polymer which are substantially insoluble in the diluent. Fouling of the reactor by adherence of polymer particles to the walls of the reactor is reduce...
01/10/1978
4053437Polyolefin catalyst and method for its preparation
A new catalyst and a method of polymerizing olefins in which the catalyst is prepared by forming a mixture by dispersing on a finely divided, difficult to reduce, inorganic support of the class consisting of silica, alumina, thoria, zirconia, titania, mag...
10/11/1977
4041225Polymerization catalyst and method
The method of making an active catalyst system, the catalyst system and a method of polymerizing olefins in which the catalyst system used is prepared by mixing an inorganic support such as silica with a chromium (III) amine complex and activating by heat...
08/09/1977
4041224Catalyst, method and polymerization processes
A catalyst prepared by (1) forming a mixture of a finely divided support such as silica, alumina, zirconia or thoria and a chromium compound which may be either organic or inorganic followed by (2) adding a titanium compound, then (3) heat activating the ...
08/09/1977
4035561Method of polymerizing
A method of polymerizing a monomer comprising ethylene in which a catalyst used is prepared by dispersing on a dry, finely divided, difficultly reducible inorganic oxide support such as silica a reaction product prepared by reacting pinacol with a chromiu...
07/12/1977
4016343Tetravalent chromium alkoxide polymerization catalyst and method
A catalyst for polymerizing one or more 1-olefins prepared by activating with a dry gas that contains oxygen a mixture of a finely divided support and a tetravalent alkoxide of chromium. The disclosure also includes the method of making the catalyst and m...
04/05/1977
4011382Preparation of low and medium density ethylene polymer in fluid bed reactor
A supported catalyst is used in the low pressure catalytic copolymerization of ethylene with C3 to C6 ଱-olefins in a fluid bed reactor to produce polymers having a density of less than 0.941 and a melt index of >0.0 to at least...
03/08/1977
4009327Polymerization of olefins
Olefin polymerization process employing a catalyst formed of a silica produced using lithium silicate. Ethylene polymers of higher melt index are produced than when sodium silicate is employed....
02/22/1977
4001196Reactivation of organochromium olefin polymerization catalyst in presence of oxygen
A particulate catalyst support containing titanium is heated to activation temperature and thereafter impregnated with a π bonded organochromium compound. Thereafter the chromium-containing catalyst is reactivated, at least a portion of the reactivation ...
01/04/1977
3976632Reactivation of organochromium olefin polymerization catalyst in presence of oxygen
A particulate catalyst support containing titanium is heated to calcination temperature and thereafter impregnated with a π bonded organochromium compound. Thereafter the chromium-containing support is reactivated, at least a portion of the reactivation ...
08/24/1976
3954699Process for polymerizing cycloolefines
A Process for polymerizing cycloolefins by ring opening reaction using heterogeneous catalyst containing tungsten trioxide and Lewis acid or tungsten trioxide, Lewis acid and organoaluminum compound as the polymerization catalyst....
05/04/1976
3953413Supported chromium-containing catalyst and process of polymerizing 1-olefins
A catalyst and the method of making same and a method of making polymers of 1-olefins with said catalyst in which the catalyst is prepared by dispersing on a finely divided, difficultly reducible, inorganic support of the nature of silica, alumina, thoria...
04/27/1976
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