Allied Chemical Corporation

Allied Corporation

Other

Gregory J Sellers

Gerald R Bretts

John A Gregor

Dirk A Timan

Wayne H Witte

Sheldon Kavesh

Louis F Nienart

Gina R Kritchevsky

Kevin James Durand

Manfred W Gruendig

Barbara Liss

A stampable thermoplastic composite having at least one thermoplastic layer and at least one shielding layer. The shielding layer comprises a material having an elongation to break of at least 8 percent, and the composite having an EMI/RFI shielding effectiveness of at least 30 db.

Stampable polymeric composite containing an EMI/RFI shielding layer

A magnetic theft detection system marker is adapted to generate magnetic fields at frequencies that (1) are harmonically related to an incident magnetic field applied within an interrogation zone and (2) have selected tones that provide the marker with signal identity. The marker is an elongated, ductile strip of amorphous ferromagnetic material having a composition defined by the formula Fe.sub.a Cr.sub.b C.sub.c P.sub.d Mo.sub.e Cu.sub.f B.sub.g Si.sub.h where 'a' ranges from about 63-81 atom %, 'b' ranges from about 0-10 atom %, 'c' ranges from about 11-16 atom %, 'd' ranges from about 4-10 atom %, 'e' ranges from about 0-2 atom %, 'f' ranges from about 0-1 atom %, 'g' ranges from about 0-4 atom % and 'i' ranges from about 0-2 atom %, with the proviso that the sum (c+d+g+h) ranges from 19-24 atom % and the fraction [c/(c+d+g+h)] is less than about 0.84.

Amorphous antipilferage marker

A magnetic theft detection system marker is adapted to generate magnetic fields at frequencies that (1) are harmonically related to an incident magnetic field applied within an interrogation zone and (2) have selected tones that provide the marker with signal identity. The marker is an elongated, ductile strip of amorphous ferromagnetic material having a composition defined by the formula M.sub.a N.sub.b O.sub.c X.sub.d Y.sub.e Z.sub.f, where M is at least one of iron and cobalt, N is nickel, O is at least one of chromium and molybdenum, X is at least one of boron and phosphorous, Y is silicon, Z is carbon, 'a'-'f' are in atom percent, 'a' ranges from about 35-85, 'b' ranges from about 0-45, 'c' ranges from about 0-7, 'd' ranges from about 5-22, 'e' ranges from about 0-15 and 'f' ranges from about 0-2, and the sum of d+e+f ranges from about 15-25.

A magnetic tape cassette is provided with a combined biasing and shielding member composed of flexible ferromagnetic material having at least 50 percent glassy structure. The member decreases construction costs and increases shielding of the magnetic tape recorder head during operation.

Amorphous spring-shield for tape cassette

A magnetic theft detection system marker is adapted to generate magnetic fields at frequencies that (1) are harmonically related to an incident magnetic field applied within an interrogation zone and (2) have selected tones that provide the marker with signal identity. The marker is an elongated, ductile strip of amorphous ferromagnetic material that retains its signal identity after being flexed or bent.

The effectiveness of thermal insulation of barriers, such as walls, floors, or ceilings of a residence, is assessed by measuring the effective values of insulation or R values, of thermal barriers. Suitable devices and procedures for utilizing such devices are provided. The R values so measured can be compared with those suggested for economic insulation in such sources as government publications to determine the desirability of augmenting existing insulation. The device comprises a holder and a temperature sensor and indicator means supported on a support slidably mounted in the holder. In one embodiment, a single device combines measurement of thermal insulation and comparison with suggested values for economic insulation. A direct measurement of whether installed insulation is adequate is thus provided.

Testing effectiveness of thermal insulation

Efficient electromagnetic shielding envelopes made of wound metallic glass filaments are disclosed. They are made by winding the filaments around a suitably shaped mandrel and embedding the filaments in a matrix. These shielding envelopes have high shielding ratios at low magnetic fields and are easily manufactured.

Electromagnetic shielding envelopes from wound glassy metal filaments

An adhesive bonding procedure for providing mechanical stabilization for metallic glass ribbons in fabric form. A curable liquid adhesive is applied to the metallic glass fabric and is cured to adhesively bond overlapping ribbons. The resulting composite shows a high quality appearance and texture of the surface, a high flexibility of the coating on the metallic glass fabric and an ability of the adhesive bond to prevent the fabric from fraying when subjected to flexing and torsioning.

Growing community of inventors

Morristown, NJ, United States of America

Gregory J Sellers