US 9,314,746 B2Granted

Hydrophilic porous substrates

Assignee3M Innovative Properties Company

InventorsClinton P. Waller, Jr., Douglas E. Weiss

Life of this patent

Estimating the term…

Abstract

Hydrophilic porous substrates, methods of making hydrophilic porous substrates from hydrophobic polymers are disclosed.

Claims17

Dependent claims

An article comprising a porous base substrate having interstitial and outer surfaces and grafted photoinitiator groups extending from the surfaces of the porous base substrate.

Dependencies are inferred from the claim text.

Facts

Application: 13/735,310Filed 7 Jan 2013 · division
Priority: 11 Oct 2007
Published: US 2013/0118975 A116 May 2013
Granted: 19 Apr 2016
Term ends: Not estimatedThe source records don’t support an estimate.

Classification16 codes

B01D 71/38
Organic material: polyalkenylalcohols; Polyalkenylesters; Polyalkenylethers; Polyalkenylaldehydes; Polyalkenylketones; Polyalkenylacetals;…
B32B 5/022
Characterised by structural features of a fibrous or filamentary layer: non-woven fabric
B32B 5/24
Characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed: one…
B32B 27/12
Layered products comprising a layer of synthetic resin: next to a fibrous or filamentary layer

Family

Application11/870,828Parent of this continuation-in-part · filed 11 Oct 2007
PCT/US2008/079176Parent of this division · filed 8 Oct 2008
US 2013/0118975 A1Pre-grant publication · published 16 May 2013
Application12/678,297Parent of this division
US 8,356,717 B2Parent of this division
Application12/678,297Parent of this continuation-in-part
US 2009/0098359 A1Published application
US 2010/0206806 A1Published application
US 9,314,746 B2This patent

From the US filing history. Foreign family members aren’t listed.

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