摘要:
A clip suitable for mounting cementitious boards to a frame is provided, which clip comprising, • A sheet having a front surface and a substantially flat back surface, the sheet comprising at least one aperture for receiving a fastener; • At least two hook-shaped carrying means, contacting the front surface of the sheet and standing in front of the front surface; • The aperture and the two hook-shaped carrying means defining an axis being parallel to the back surface, the axis coinciding with the aperture and the point on the front surface being at minimum but equidistant to the hook-shaped carrying means;
wherein the sheet comprises at least one rise at the front surface, the rise extending from a first point of the front surface at one side of the axis to a second point of the front surface at the other side of the axis, the sheet being uninterrupted along the rise, the rise is not a bulge.
摘要:
Provided herein are compositions useful as ink or coatings which contain novel dispersants that are capable of dispersing pigments which are traditionally difficult to disperse while maintaining acceptable levels of viscosity. Use of dispersants as taught herein enables the preparation of a wide variety of inks and coatings having high pigment loading and existing within a conventionally-useful viscosity range.
摘要:
In an embodiment, an amine-oxidation inhibitor, such as a free radical scavenger and/or antioxidant, is added to an oxidation-sensitive amine, such as an amine catalyst, to inhibit oxidation of the amine. The inhibitor-treated amine may then be used in an application such as a polyurethane application to reduce the emission of undesired oxidation products from the polyurethane.
摘要:
According to the present invention, a method for separating a primary amine being an N,N- dialkylbisaminoalkylether, from mixtures comprising said primary amine and at least one of a secondary amine being an N,N,N'-trialkylbisaminoalkylether and a tertiary amine being an N,N,N',N'-tetraalkylbisaminoalkylether, comprising the steps: (α) joining said mixture and at least one of a ketone and an aldehyde for reacting said primary amine with said at least one of a ketone and an aldehyde, thereby providing a primary amine based imine by a Schiff base reaction; (β) separating the primary amine based imine from said at least one of the secondary or tertiary amine; and (γ) recovering the primary amine from its primary amine based imine by hydrolysis of the primary amine based imine.
摘要:
Process for the simultaneous and continuous production of two different mixtures of predominantly 4,4'-MDI and 2,4'-MDI in a single-step suspension melt crystallisation process whereby a mixed diisocyanate feed stream [MIx] is used to produce simultaneously two mixed diisocyanate streams [MIy and MIz] wherein x is 8 to 20, y is 1 to 3 and z is 20 to 40 where x, y and z are percentages by weight of the 4,4'-diphenylmethane diisocyanate isomer contained in the diphenylmethane diisocyanate isomer mixture.
摘要:
Embodiments of the present invention disclose an agricultural composition that is a field ready spray or a tank mix that includes at least one nitrogen containing isethionic acid salt, at least one agriculturally active ingredient, and at least one surfactant.