The present invention provides a filter apparatus for use in removing impurities and acids contained in a fluid that includes a particulate filter (10) and an acid-neutralizing filter (20).

According to the invention a tertiary amine functional urethane polymer or oligomer acts as acid neutralizing agent.

Magnesium hydroxide is useful for the neutralization of acids in the chemical industry.

These granulates are obtained by neutralizing anionic surfactant acids with solid neutralizing agents, said neutralizing agents comprising sodium carbonate that at least partially reacts to sodium hydrogen-carbonate.

The particulate filter (10) and the acid-neutralizing filter (20) may be positioned within separate housings or they may be positioned within a common housing.

The physical means comprises either crystallization or mixing and the chemical means comprises as an example precipitation, neutralization of acids and alkalis and oxidation/reduction.

Provision of the acidic material between the silicone release layer and the substrate prevents neutralization of acids formed during cure of the silicone layer.

Certain transition metals other than copper are preferred melt viscosity stabilizers when aluminum compounds, such as hydrotalcite acid neutralizer, is present.

A latex polymer based ink comprising: (a) water; (b) a latex polymer; (c) pigment; (d) an acid neutralization agent; and (e) a rewetting agent.

These salts which are widely used for their detergency and acid neutralization properties should be avoided altogether or used at a level not exceeding 0.0007 moles of organic calcium salt per 100 grams of lubricant.

The clean burning wood biomass fuel formed from a mixture containing wood biomass and calcium carbonate results in the neutralization of organic acids found in the wood biomass.

Special advantages of this invention are: (a) sustained coating of the teeth by LAE and its homologues; (b) the coating agent provides a source of neutralizing plaque acids by providing sustained base formation.

The present invention provides a filter apparatus for use in removing impurities and acids contained in a fluid that includes a particulate filter (10) and an acid-neutralizing filter (20).

According to the invention a tertiary amine functional urethane polymer or oligomer acts as acid neutralizing agent.

Magnesium hydroxide is useful for the neutralization of acids in the chemical industry.