FR1118435A - Improvements relating to polyamides - Google Patents

Improvements relating to polyamides

Info

Publication number
FR1118435A
FR1118435A FR1118435DA FR1118435A FR 1118435 A FR1118435 A FR 1118435A FR 1118435D A FR1118435D A FR 1118435DA FR 1118435 A FR1118435 A FR 1118435A
Authority
FR
France
Prior art keywords
polyamides
improvements relating
relating
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Application granted granted Critical
Publication of FR1118435A publication Critical patent/FR1118435A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
    • C08G69/02—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids
    • C08G69/26—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids derived from polyamines and polycarboxylic acids
    • C08G69/265—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids derived from polyamines and polycarboxylic acids from at least two different diamines or at least two different dicarboxylic acids
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0802—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection
    • H04B7/0831—Compensation of the diversity switching process for non-uniform properties or faulty operations of the switches used in the diversity switching process
FR1118435D 1953-11-16 1954-11-16 Improvements relating to polyamides Expired FR1118435A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3167753A GB760025A (en) 1953-11-16 1953-11-16 Improvements in or relating to linear polyamides

Publications (1)

Publication Number Publication Date
FR1118435A true FR1118435A (en) 1956-06-05

Family

ID=38524561

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1118435D Expired FR1118435A (en) 1953-11-16 1954-11-16 Improvements relating to polyamides

Country Status (5)

Country Link
BE (1) BE533330A (en)
ES (1) ES218247A1 (en)
FR (1) FR1118435A (en)
GB (1) GB760025A (en)
NL (1) NL83393C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0001039A1 (en) * 1977-08-18 1979-03-21 Bayer Ag Transparent polyamide
EP0012931A2 (en) * 1978-12-23 1980-07-09 Bayer Ag Copolyamides based on a mixture of cycloaliphatic amines and moulded articles thereof

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2732928A1 (en) * 1977-07-21 1979-02-01 Bayer Ag TRANSPARENT POLYAMIDE

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0001039A1 (en) * 1977-08-18 1979-03-21 Bayer Ag Transparent polyamide
EP0012931A2 (en) * 1978-12-23 1980-07-09 Bayer Ag Copolyamides based on a mixture of cycloaliphatic amines and moulded articles thereof
EP0012931A3 (en) * 1978-12-23 1980-07-23 Bayer Ag Copolyamides based on a mixture of cycloaliphatic amines and moulded articles thereof

Also Published As

Publication number Publication date
ES218247A1 (en) 1955-06-01
BE533330A (en) 1958-04-11
NL83393C (en) 1956-11-15
GB760025A (en) 1956-10-31

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