ZA786346B - Improvements in and relating to prefabricated subsurface drains - Google Patents

Improvements in and relating to prefabricated subsurface drains

Info

Publication number
ZA786346B
ZA786346B ZA00786346A ZA786346A ZA786346B ZA 786346 B ZA786346 B ZA 786346B ZA 00786346 A ZA00786346 A ZA 00786346A ZA 786346 A ZA786346 A ZA 786346A ZA 786346 B ZA786346 B ZA 786346B
Authority
ZA
South Africa
Prior art keywords
prefabricated
relating
subsurface
drains
subsurface drains
Prior art date
Application number
ZA00786346A
Inventor
J Nixon
E Mckeand
Original Assignee
Ici 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 Ici Ltd filed Critical Ici Ltd
Publication of ZA786346B publication Critical patent/ZA786346B/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
    • B01D39/1607—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous
    • B01D39/1623—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous of synthetic origin
    • B01D39/163—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous of synthetic origin sintered or bonded
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/022—Non-woven fabric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/726—Permeability to liquids, absorption
    • B32B2307/7265—Non-permeable

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Laminated Bodies (AREA)
ZA00786346A 1977-08-16 1978-11-10 Improvements in and relating to prefabricated subsurface drains ZA786346B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3434577 1977-08-16

Publications (1)

Publication Number Publication Date
ZA786346B true ZA786346B (en) 1979-10-31

Family

ID=26155939

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA00786346A ZA786346B (en) 1977-08-16 1978-11-10 Improvements in and relating to prefabricated subsurface drains

Country Status (4)

Country Link
AU (1) AU524262B2 (en)
ES (1) ES465947A3 (en)
GB (1) GB2002686B (en)
ZA (1) ZA786346B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU6853387A (en) * 1986-09-05 1988-03-10 Leucadia, Inc. Subsurface drainage matting
DE3874363T2 (en) * 1987-01-21 1993-02-11 Netlon Ltd DRAINAGE MATERIAL AND DRAINAGE CORE FOR DRAINAGE SYSTEM.
GB8825990D0 (en) * 1988-11-07 1988-12-14 Netlon Ltd Reinforcing paved surface & reinforcement therefor
US5273804A (en) * 1988-11-07 1993-12-28 Netlon Limited Reinforcement for reinforcing a paved surface
FR2661435B1 (en) * 1990-04-27 1992-12-31 Nortene Sa TABLECLOTH MATERIAL, ESPECIALLY FOR DRAINAGE USE.
US5277520A (en) * 1991-12-06 1994-01-11 The Tensar Corporation Grid composite for backfill barriers and waste applications
EP0626187B1 (en) * 1993-05-26 1998-07-15 Chisso Corporation A filtering medium and a process for producing the same
FR2738770B1 (en) * 1995-09-15 1997-10-24 Nortene Technologies PLASTIC TABLECLOTH MATERIAL PARTICULARLY FOR THE PRODUCTION OF OCCULTATION SCREENS FOR GARDENS, TERRACES AND BALCONIES
GB9713235D0 (en) * 1997-06-23 1997-08-27 Netlon Ltd Electrically-conducting element

Also Published As

Publication number Publication date
GB2002686B (en) 1982-03-31
AU524262B2 (en) 1982-09-09
ES465947A3 (en) 1978-09-16
AU3886878A (en) 1980-02-21
GB2002686A (en) 1979-02-28

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