8 results about "Water resistant" patented technology

An article of clothing includes a waterproof inner fabric layer and an outer fabric layer. An outer opening is defined in the outer fabric layer and is selectively opened and closed by a standard zipper. A portion of the inner fabric layer extends between the edges of the outer opening and defines an inner opening. The inner opening is selectively opened and closed by a water-resistant zipper. Venting material extends between the edges of the inner opening and allows air to flow through the inner opening when both the inner and outer openings are opened.

An expansion joint seal system which includes intumescent to protect uncoated edges of substrates. A fire rated compressed expansion joint sealant is provided having an intumescent proximate, but below the water-resistant top of the fire-retardant foam, so that when exposed to fire, the intumescent expands to protect the exposed vertical surface of the adjacent concrete substrate. The end of the concrete is therefore protected in a manner which does not require joint overlap between the horizontal fire resistant coating and the compressible sealant.

The invention discloses a halogen-free flame retardant and a preparation method thereof and a flame-retardant polyolefin composition composed of the same. The structural formula of the halogen-free flame retardant is shown in the description, wherein the ratio of x to y to z is 1:(5-10):(1-5). The preparation method comprises the steps that melamine, phosphoric acid and piperazine are weighed and put into a high-speed mixer of which the top is provided with a liquid spray device to be stirred and mixed to be uniform, and a halogen-free flame retardant premixed material is obtained; the halogen-free flame retardant premixed material is subjected to a high-temperature dehydration condensation reaction, and the polyphosphoric acid-melamine-piperazine composite salt halogen-free flame retardant is obtained. The halogen-free flame retardant with the composite salt structure has the advantages that the halogen-free flame retardant is good in heat stability, high in phosphorus content and free of impurities such as halogens and inorganic salts, and the index of whiteness is larger than 90; few synthesizing process steps are needed, operation is simple and easy to carry out, the requirement on equipment is low, and the product yield reaches up to 80% or above; the flame-retardant polyolefin composition containing the halogen-free flame retardant has the good flame-retardant property, high water-resistant and heat-resistant properties and the excellent pigmenting property.

Disclosed is a bedroll protector configured to store and transport a bedroll. The bedroll protector comprises an elongated substantially rectangular bag body with an openable flap or sheet for receiving a bedroll. The protector may be placed on the ground in an unrolled configuration to receive and insulate a user's bedroll from damp and dirty ground conditions. In one embodiment, the bedroll protector comprises waterproof material. In another embodiment, the protector comprises waterproof material on the side that engages the ground and water-resistant breathable material on the protector's opposite side. Upon receiving a bedroll, the bedroll protector may also be rolled up and secured in such position by accompanying straps to enable storage and transportation of the bedroll.

The invention discloses a production process of an environment-friendly water-based anti-corrosion coating. The production process comprises the following steps: adding deionized water and an SN-5027 water-resistant dispersant into a paint preparation tank, fully and uniformly stirring, further putting attapulgite, iron oxide red powder, aluminum tripolyphosphate, mica powder, an AMP-95 additive, a defoaming agent and the like into the paint preparation tank, uniformly stirring, then grinding by a sand mill to the fineness of not more than 30mu m, further adding a self-crosslinked and modified styrene-acrylate emulsion, a mildew-proof and anti-bacterial agent and other additives into the paint preparation tank, fully and uniformly stirring, regulating viscosity with the deionized water till the coating is qualified, filtering and packaging. The produced coating has the characteristics of high drying speed, great anti-rust and anti-corrosion properties, and excellent heat resistance, resistance to brine and resistance to a nitrocellulose coating, thereby meeting the requirements on a dip coating line of a cast iron housing of a diesel engine that emulsification-resistant cutting fluid, 30# mechanical oil and a hot washing solution at 90 DEG C have no sticking, decoloring and blistering and other quality indexes during soaking and rinsing.

The invention relates to a device and method for bonding a grinding wheel and a grinding wheel disc with double-sided adhesive. The device includes: a grinding mechanism for cleaning the grinding wheel disc, and a waterproof double-sided adhesive bonding mechanism for bonding the grinding wheel to the cleaned Grinding wheel disk bonding, pressurizing mechanism, used for pressurizing the bonded grinding wheel and grinding wheel disk to stabilize the bond; the method includes the following steps: 1) cleaning the grinding wheel disk with a grinding mechanism; 2) applying a layer of Put the adhesive on the sticking surface of the grinding wheel; 3) After the adhesive is slightly dry, paste the waterproof double-sided adhesive on the sticking surface of the grinding wheel; 4) Take off the protective paper of the double-sided adhesive, and align the grinding wheel and the grinding wheel plate; 5 ) apply pressure to the bonded grinding wheel and the grinding wheel disc through the pressing mechanism to stabilize the degree of bonding. Compared with the prior art, the invention has the advantages of firm bonding, smooth bonding, no pollution, safe operation and the like.