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4316973 |
Novel telechelic polymers and processes for the preparation thereof
Novel telechelic olefin and hydroxy polymers particularly those of polyisobutylene are prepared according to the process set forth herein. Preparation of a telechelic diolefin polyisobutylene...
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4276394 |
Novel telechelic polymers, block copolymers and processes for the preparation thereof
Novel telechelic halogenated polymers of cationically polymerizable olefin monomers are formed carrying from 2 to about 6 terminal halogens. The telechelic halogenated polymers are formed by...
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4213134 |
Circuit and method for the recorder display of high frequency periodic signals
A circuit and method for the display of a high frequency periodic signal on a display (21) having a maximum response frequency less than the periodic signal frequency includes a signal period...
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4181971 |
Apparatus for presenting a sequence of fixed pictures
Disclosed is a device which can utilize, as an input signal, the solution to mathematical problems from an analog computer or which can be used directly with a process that is governed by a...
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4180692 |
Method for reacting organic halides
A method for carrying out reactions of the Friedel-Crafts type, such as alkylation, acylation, polymerization, sulfonylation and dehydrohalogenation. The reactions are catalyzed by arene-metal...
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4136136 |
Graft copolymers of hydrocarbons and small ring heterocyclic compounds and process for the preparation thereof
Disclosed are novel graft copolymers comprising hydrocarbon backbones and polymerized small ring heterocyclic compounds. The backbones are devoid of O, N or S in the main chain and include SBR,...
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4108945 |
Star polymers and process for the preparation thereof
Disclosed is a series of star polymer products having at least three polymeric arms which radiate from a nucleus having at least two molecules of a linking compound. The polymeric arms may be...
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4091236 |
Automatically tunable notch filter and method for suppression of acoustical feedback
Disclosed is an automatically tunable notch filter and method for suppression of acoustical feedback in an audio signal. The apparatus includes a selectively tunable notch filter having a center...
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4087798 |
Device and method for determining the presence of resonant materials
A spectroscopic refractometer has a plurality of resonant cavities through which the environment to be sampled may pass, including a first resonant cavity constructed and tuned to resonate at a...
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4038324 |
Method for reacting organic halides
A method for carrying out reactions of the Friedel-Crafts type, such as alkylation, acylation, polymerization, sulfonylation and dehydrohalogenation. The reactions are catalyzed by arene-metal...
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4020127 |
Bigraft copolymers and process for the preparation thereof
Disclosed is a novel bigraft copolymer comprising a polyhydrocarbon backbone selected from the class consisting of aromatic homopolymers, saturated and unsaturated hydrocarbon homopolymers, such...
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3985830 |
Star polymers and process for the preparation thereof
Disclosed is a series of star polymer products having at least three polymeric arms which radiate from a nucleus having at least two molecules of a linking compound. The polymeric arms may be...
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3984483 |
Method for reacting organic halides
A method for carrying out reactions of the Friedel-Crafts type, such as alkylation, acylation, polymerization, sulfonylation and dehydrohalogenation. The reactions are catalyzed by arene-metal...
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3979774 |
Digital control system and method for the synchronization of audio-visual equipment
Disclosed is a digital control system and method for synchronizing audio-visual equipment for the presentation of film slides with corresponding sound narrations. As the film passes through...
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3946072 |
Method for reacting organic halides
A method for carrying out reactions of the Friedel-Crafts type, such as alkylation, acylation, polymerization, sulfonylation and dehydrohalogenation. The reactions are catalyzed by arene-metal...
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3933752 |
Method for reacting organic halides
A method for carrying out reactions of the Friedel-Crafts types, such as alkylation, acylation, polymerization, sulfonylation and dehydrohalogenation. The reactions are catalyzed by arene-metal...
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3926950 |
Method for reacting organic halides
A method for carrying out reactions of the Friedel-Crafts type, such as alkylation, acylation, polymerization, sulfonylation and dehydrohalogenation. The reactions are catalyzed by arene-metal...
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3923759 |
Process for the preparation of isobutylene/beta-pinene copolymers
Disclosed is a process for the azeotropic copolymerization of isobutylene and beta-pinene including the steps of charging a reaction vessel, substantially free from moisture, with an X mole percent...
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3916304 |
Method for nondestructive testing of weld clusters
Disclosed is a method for the nondestructive testing of weld clusters having at least a first and a second weld joining metal elements including the steps of injecting a current into one of the...
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3912788 |
Method for reacting organic halides
A method for carrying out reactions of the Friedel-Crafts type, such as alkylation, acylation, polymerization, sulfonylation and dehydrohalogenation. The reactions are catalyzed by arene-metal...
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3911023 |
Method for reacting organic halides
A method for carrying out reactions of the Friedel-Crafts type, such as alkylation, acylation, polymerization, sulfonylation and dehydrohalogenation. The reactions are catalyzed by arene-metal...
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3894089 |
Method for reacting organic halides
A method for carrying out reactions of the Friedel-Crafts type, such as alkylation, acylation, polymerization, sulfonylation and dehydrohalogenation. The reactions are catalyzed by arene-metal...
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3891713 |
Method for producing aromatic sulfones
A method for carrying out reactions of the Friedel-Crafts type, such as alkylation, acylation, polymerization, sulfonylation and dehydrohalogenation. The reactions are catalyzed by arene-metal...
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3832403 |
METHOD FOR REACTING ORGANIC HALIDES
A method for carrying out reactions of the Friedel-Crafts type, such as alkylation, acylation, polymerization, sulfonylation and dehydrohalogenation. The reactions are catalyzed by arene-metal...
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3765853 |
PROCESS FOR MAKING METAL SPHERES IN OXIDE GLASSES
A process for making small metal spheres encapsulated in an oxide glass. A metal compound, which decomposes to the elemental metal upon heating is mixed with oxide glass particles such that the...
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3804922 |
RUBBERY POLYMERS
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3749772 |
DERMAL PROTECTIVE FILM
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